JNB JBJR-4000 Bike Manual

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JNB JBJR-4000 Bike Manual Powered By Docstoc

Operation Manual

 Upright Bike   : JB-4000
 Recumbent Bike : JR-4000

        JNB SPORTS
        TEL : 82-31-902-1381 FAX : 82-31-902-1382
        e-mail : jnb9604@korea.com

Before using this product, it is essential to read this ENTIRE operation manual
and ALL installation instructions.

This will help in setting up the equipment quickly and in instructing others on
how to use it correctly and safely.

This Operation Manual describes the functions of the following products;

 JNB SPORTS       Upright Bike          : JB-4000
                 Recumbent Bike         : JR-4000

Statement of Purpose ;
To provide an exercise machine that enables users to exercise as if they where
in fact riding a bicycle.

JNB SPORTS STRONGLY recommends consulting a physician for a complete
medical examination before undertaking any exercise program
 - Particularly if the user has a family history of high blood pressure or heart
 - Over the age of 45, or smokers
 - High cholesterol, obese, or no exercised regularly in the past year.

If, at any time while exercising , the user experiences faintness, dizziness, pain
or shortness of breath, he or she must stop immediately.

              Caution : Any changes or modifications to this equipment
                       could void the product warranty.

     Any service, other than cleaning or user maintenance, must be
           performed by an authorized service representative

                   There are no user serviceable parts.


Section Description                                                    P a ge
1. Ge tting Started ------------------------------------------------------        4
 1.1 Important safety instructions --------------------------------------------
 1.2 Setup ----------------------------------------------------------             5

2. T h e Display Console ---------------------------------------------------
 2.1 The display console overview --------------------------------------------
 2.2 Display console descriptions --------------------------------------------
 2.3 The accessory tray --------------------------------------------------
3. He art Rate Zone Training Exercise -----------------------------------------
 3.1 Heart rate zone training exercise -----------------------------------------
 3.2 Heart rate monitoring ------------------------------------------------

4. T h e W orkouts ------------------------------------------------------         16
 4.1 Workout overviews --------------------------------------------------
 4.2 Using the workouts -------------------------------------------------
 4.3 Fitness test   ---------------------------------------------------           27

5. Optional S ettings ----------------------------------------------------        30
 5.1 Optional settings ---------------------------------------------------
 5.2 To enter the optional settings -------------------------------------------

6. S ervice and T echnical Da ta ----------------------------------------------
 6.1 Preventative maintenance tips -------------------------------------------
 6.2 Preventative maintenance schedule ----------------------------------------
 6.3 Troubleshooting the polar heart rate chest strap --------------------------------
 6.4 Troubleshooting the pulse system sensors ------------------------------------
 6.5 Recycling the battery ------------------------------------------------
 6.6 How to obtain product service -------------------------------------------

7. S pecifications ------------------------------------------------------         34


  Read all instructions before operating the Bike.

            WARNING: The safety of the product can be maintained only if it is examined regularly for
                  damage and wear. See Preventative Maintenance section for details.

  • Use the Bike only as directed in this manual.
  • If the Bike does not function properly after it has been dropped, damaged, or even
   partially immersed in water, contact the manufacturer or the supplier for assistance.
  • Do not allow other people to interfere in any way during a workout.
  • Always follow the console instructions for proper operation.
  • Supervise closely any children or disabled persons using the Bike.
  • Do not use the Bike outdoors, near swimming pools, or in areas of high humidity.
  • Never insert objects into any opening of the Bike. If an object should drop inside,
   stop the workout and carefully retrieve it. If the object cannot be reached, contact
   the manufacturer or the supplier.
  • Never place containers filled with liquids directly on the unit, except in the water bottle holder
   in the accessory tray. Containers should be sealed with lids.
  • Wear shoes with good traction soles.
  • Do not use the Bike with bare feet.
  • Keep all loose clothing, shoe laces, and towels etc. away from moving parts
  • Do not reach into, or underneath, the unit; and do not tip the unit on its side during
  • Keep the area around the Bike clear of any obstructions, including walls and furniture.
   Provide at least three feet of clearance behind the unit.
  • Use caution when stepping on or off of the Bike.
  • Never face backward while using the Bike.


Read the entire Operation Manual before setting up the exercise Bike.

1.2.1 W here to place th e exercise bike
Following all safety instructions in Section 1.1, move the bike to the location in which it will be
used. See Section 7, titled ‘Specifications’ for the dimensions of the Bike. Allow a distance
of 30 Cm’s (12 inches) between the bike and other objects or surfaces on either side.
Allow a distance of 1 meter (3 feet) from the front or rear of the bike to any other object or

1.2.2 How to s tabilize the bike
After placing the bike in position, check the Bike’s stability by attempting to rock it from side to
side. The Bike must be level.

To stabilize the Bike, lift the bike and rotate the stabilizing cap (A).
Check bike stability. Repeat the adjustment if necessary.




1.2.3 How to a djust th e seat

              Caution: It is important to correctly adjust the seat to an optimal height for pedaling the Bike
                      Pedaling with the seat too low can place excessive strain on the knees and the qua
                    Pedaling with the seat to high can irritate the feet, ankles, hips and knees.

Upr ight Bike : JB -4000
• To determine whether or not the seat requires adjustment, sit on the bike seat and place feet
on pedals.
• The knee should bend slightly when the pedal is at the lowest point of its rotation. It should be
possible to pedal
 without locking the knees or shifting in the seat.
• A Gas Spring System (B) in the Bike which makes it easy and safe to adjust the height of the
• To raise the seat, lift the body so that there is no weight on the seat and pull up the
adjustment lever (A) to
 unlock the post. The seat will automatically rise.
• When the seat is at the desired height, release the adjustment lever to lock the seat in place.
• Test and readjust the seat height if necessary.
• To lower the seat, remove all weight from seat, pull up the adjustment lever to unlock the post,
 sufficient weight to lower the seat to the desired position, then release the lever to relock the
• Test and readjust the seat height if necessary.


              Caution: When using the height adjustment mechanism to adjust the height of
               a seat, always hold the seat to prevent any rapid rise or descent of the seat.

R e cumbent Bike : JR -4000

  Sit on the seat and place feet on the pedals. An optimum position will allow movement
through the bottom of
  the stroke without locking the knees or a rolling movement in the seat.
  The knees should have a slight bend at the point of fullest leg extension.

  If the seat needs to be adjusted, lift up the adjustment lever (A) located on the right of the
  with your fingers, and slide the seat backward or forward as necessary to the proper
position and release
  the lever to complete lock engagement. Rock the seat backward and forward to ensure it is
firmly locked
  into place. Check the seat position and readjust further if necessary.


                Caution : Do n ot adjust the seat while pedaling the bike.
                       Failure to insert the seat lock properly may result in a user injury and/or
                       damage to the locking mechanism.

 1.2.4 How to a djust th e pedal straps
 The bike pedal straps assist in keeping the user’s feet on the pedals during a workout. The
 straps should
 fit comfortably, but be sufficiently tight enough to prevent feet from slipping from the pedal at
 any point
 in the pedaling rotation. Be fore using th e bike, c orrectly a djust straps.
 The pedal straps of the bike can be adjusted to fit a wide variety of shoe sizes.
 The straps (A) are held in place by two knobs (B) and one release button (C) under the pedal.
 Insert the serrated end of the strap through the pedal slot (Outside edge of each pedal) and
 under the release button.
 The pedal strap can be tightened by pulling the end of the strap to the required position -
 Rest the foot on the pedal and press the strap between the thumb and forefinger to conform
 strap to your foot profile– The strap will automatically feed the through the release button and
 lock in place.
 To release feet from the pedal strap, press the release button (C)
 Alwa ys r elease the strap – Do n ot twist fe et c lear.

                  (B)                                                (C)

1.2.5 S tarting up th e bike c onsole
Press S tart or begin pedaling the bike, to power up the console, Various console LED’s will be
illuminated and the
If the user does not select a program workout within in 10 seconds, the console will automatically
default to a
M a n ual workout. For information on setting up a workout, refer to Section 4.2, titled ‘Us ing the
W orkouts’.

      The computerized display console on the bike allows the user to exercise according to
 their personal fitness
      abilities and goals as well as monitor their progress. With this ‘easy to use’ console the
 user can track
      fitness improvement from one workout to the next.



(P)                                                                                                (M)

                                                    (E)                                  (F)

           (G)                                                                           (H)

           (I)                                                                           (J)


                                (K)                                   (L)

                                             (A)    (B)


 This section describes the key and display functions on the bike console.

(A) Start
  Press this key to activate the console for programming a new workout. The activated
  powers up and displays ‘S ELECT W ORKOUT OR P RESS QUICK START’. If a further key is
  pressed within 10 seconds, the console will power down.
 NOTE: Pedaling will also activate the panel in a similar fashion.

(B) Enter
  Press this key after entering each required input, such as weight or workout time etc,

(C) Numeric keypad
  Use these keys to enter all numerical input values, when programming the workout
  The       arrow keys will also change time and various levels respectively up or down
  from a default value in each case, Although it is simpler to enter values from the numeric

(D) Arrow keys
  UP and DOWN arrows keys are located on either side of the T ime/Level W indows
  T ime arrow : Press to change values, such as workout time, calories, distance, weight,
  Le ve l arrow : Press to change values, such as intensity level, target heart rate, weight,
  During a workout;
  Operating the level arrows       will change intensity levels accordingly.
  Operating the time arrows       will increase /decrease the workout duration.

(E) Quick Start
  Pressing this key begins a M a n ual workout immediately, without need to enter further
  Whilst the M a n ual workout is in progress, pressing the      arrow keys will change the
  duration and/or the intensity level to suit any personal requirements.

(B) Clear
      If pressed when programming a workout, the message centre will prompt ‘CLEAR
      Pressing the Cle ar button again will bring back the original data entry which then may
be overwritten
      or cleared by pressing the ‘0’ key.
      If the En te r button is pressed the message center will prompt the user for a new
workout setup.
      Pressing Clear during a workout will cause the Message Centre to display ‘CANCEL
      Press En ter to stop immediately and the message center will display a summary of
the workout -
      including total time elapsed, total distance traveled, and total calories burned.

      Pressing Clear a second time causes the message center to prompt the user for a

new workout setup.

(G) Goal
      A user can select one of the following keys for setting up a specifically targeted

                        Distance / Calories / Time
      If a program goal option is not selected the control will default to T ime .

(H) Mode
  •   Manual:               Press this key to select a M a nual program, in which the

intensity level will
                            remain constant unless manually changed.

  •   Bike Mode:               Press this key to select a Bike M ode program in which the
rate of calories
                           burned and the total distance traveled increase automatically as
the user
                           increases pedaling speed.

  •   Constant Cal./Hr:         Press this key to activate an alternate workout mode, which
enables the
                           user to maintain a consistent rate of calories burned per hour.

(I)   Heart Rate Program
      To use a heart rate controlled program the user must provide a continuous heart rate signal
either by
      continuously grasping the hand grip pulse system sensors located in the handles or by
wearing a Polar®
      heart rate chest strap transmitter (or a similar compatible unit).
      • Fa t Bu rn:            This option will provide a low intensity fat burning workout.
      • Ca r dio:              This option will provide a higher intensity workout for fit users, incorporating
a higher
                           level of cardiovascular workout with maximum fat burning.
      • T a r get In terval:    This option consists of three hills each with their own individual target heart
rate goals.
      • T a r get Hill:        This option alternates between two target heart rates as quickly as possible.

(J) Preset Program
      Press this key to select P r eset Program workouts, in which intensity levels increase and
decrease in set patterns.
      (Various profiles are detailed on pages 17 – 20) These preset program options are -
                               • In te r val • Hill • M ountain • P ower

(K) Fitness Test
      Measures cardiovascular fitness compared to other people of the same age and gender.

(L) Cool Down
      All workout programs end automatically in a Cool Down mode, of lower intensity level. In this
phase of a
      workou t the body begins to remove lac tic acid and other accumulated by products of exercise.
      ( These products build up in muscles during a workout and contribute to muscle soreness.)
      Press the Cool Down key at any desired point during a workout to go immediately into Cool
Down mode.
      The console will automatically adjust each workout’s Cool Down level according to the
individual user’s

      This window displays bar graphs of LED’s, that represent the levels of intensity of the workout
in progress.
      The column furthest to the left is proportional to the current level of intensity. The window will
depict a bar graph
      representation of a workout program whilst the workout is programmed.

(N) Message Center Window
  This window displays step by step instructions for setting up a workout.
  During a workout, it displays statistics about the progress of the workout.
  • He art R ate:               The detected heart rate
  • Dis tance:                  The total distance traveled.
  • R P M (Revs Per M inute):   The pedaling speed or cadence
  • Ca lories:                  The number of calories burned since beginning the workout.
    If programmed to do so, the M ES SAGE CENTER can displays other workout values.
  • Ca lories per Hour:         The rate of calories burned per hour.
  • M ET ’s:                    The effort level in MET’s.
    MET is an expression of the rate of work for the human body at rest, or a metabolic
    One MET is approximately equal to the metabolism of a person at rest.

    If the console does not detect a heart rate signal either from the hand grips or a chest strap
transmitter then
    the message centre will display a prompt message – ‘P LACE HANDS ON SENSORS OR USE
    If the console does not receive or looses a signal for approximately three minutes the
workout and statistics
    are automatically converted to those of a manual workout and will continue to run as a
manual program.

(O) Time / Level window
   These windows display the programmed intensity level and the time elapsed since the start of
the program

(P) Heart rate window
   The LED bar graph displays the users current heart rate in 10 beat increments and the LED
column the current
   heart rate as % of programmed maximum heart rate

   The accessory tray (A), mounted in front of the frame, provides one storage tray with space for
 items such as
   water bottles, personal stereos, and cell phones. Additionally, an integrated reading rack for
 supporting a book or
   magazine (B) is located below the workout profile window (M) in the main console.

                                               (B)                    JR-4000

               JB-4000                            (A)


 Research shows that maintaining a specific heart rate while exercising, is both the optimal
way to monitor the
 intensity of a workout and to achieve maximum results. This is the concept behind a heart
rate zone training
 approach to exercise. Zone Training identifies an exerciser's ideal heart rate range, or zone,
for burning fat or
 increasing cardiovascular fitness. The values within the zone depend on the workout.

 NOTE: Consultation with a fitness trainer is recommended for defining specific fitness goals
and designing a
      suitable workout program.

 The four bike workouts, Fa t Bu rn, Cardio, Target Interval, Target Hill are designed to take full
 During these workouts, either grasp the pulse system sensors, or wear a Polar® heart rate
advantage of to enable the bike’s on board computer to monitor the heart rate. The computer
 chest strap
 the benefits adjusts the resistance level to maintain the target heart rate based on the actual
 automaticallyof a heart rate program exercise;
 heart rate.

3.2.1 T he h and grip heart rate monitoring system
The hand grip pulse sensors are built into each side of the handle bar grips. To check heart rate
During a workout, grasp of the two sensors that are set into the handlebars. For an accurate
reading, use a comfortable grip. The console will display the heart rate after 1 to 10 seconds.

                                                                                     JR -4000



 3.2.2 T he P olar® te lemetry heart rate monitoring chest s trap (Or similar compatible item)
 The bike is equipped with Polar® telemetry, a heart rate monitoring system in which electrodes are
 pressed against the skin, and transfer heart rate signals to the bike console. These electrodes are
 mounted in the chest strap that is worn during the workout. The chest strap is an optional extra,
 to order call your local distributor or supplier.
 See the diagram below for correct positioning of the strap. The electrodes (A) which are the two
 grooved surfaces on the underside of the strap, must remain moist to transmit accurately the
 electrical impulses of the heart back to the receiver. Moisten the electrodes or apply a conductive
 gel. Secure the strap as high under the chest muscles as possible. The strap should be snug, but
 comfortable enough to allow for normal breathing.

                                                           The transmitter strap delivers an optimal heart
                                                           rate reading when the electrodes are in direct
                                                           contact with skin.
                                                           (It may also function through a thin layer of wet

                                                           If it becomes necessary to remoisten the chest
                                                           strap electrodes, grasp the center of the strap,
                                                           pull it away from the chest and remoisten the
                                                           two electrodes.

This section lists the Bike’s preprogrammed workouts. For more detailed information,
see Section 4.2, titled ‘Using the Workouts’.

4.1.1 Quick S tart
 This is the fastest way to begin exercising, and it bypasses the steps involved in
 selecting a specific workout program. After the Qu ick S tart key is pressed, a constant level
 workout begins. All intensity levels are changed manually they not change automatically..

4.1.2 Manual

 As Qu ic k S tart - this is a workout in which the intensity levels are change manually.

4.1.3 Preset Program

• In te rval is a Hill workout in which intensity levels rise and fall. The higher levels gradually
  incline toward a peak and then gradually decline.

 • Hill is an interval training workout combining ‘hills’ and ‘valleys’ with ‘hills’ of different intensity levels,
   and is proven to provide effective, time efficient cardiovascular results.

4.1.3 Preset Program
Con t.
  • M ountain is a Hill workout in which the intensity levels gradually incline toward one ultimate
     peak and then gradually decline.

   • P ower is a Hill workout in which the intensity level alternates between high and low levels
       very quickly to simulate a typical speed-training (interval) workout.

4.1.4 Heart R ate Program
  T h e user must wear a Polar® heart rate chest s trap, or grasp th e pulse system sensors c ontinuously.

  • Fa t Burn
    This is a low intensity workout for burning the body’s fat reserves. The workout program
     automatically adjusts the intensity level, based on the actual heart rate. The user selects the
     intensity level from 50 to 65 percent of the theoretical maximum (MHR).

                               Us er example : 35 y ear old (MHR 185) 65% M HR,

• M a x imum Heart R ate (MHR) : Defined by the American College of Sports Medicine's
  "Guidelines for Exercise Testing and Prescription" as equal to 220 minus an individual ’s age.

• T a r get Heart R ate (THR) : This is a percentage of the theoretical maximum.
   For example, a 35 year old user's THR for the CAR DIO workout is 148.
   This workout targets 80 percent of the maximum, so the equation would be 0.8(220 -35) =148.

   Programs that calculate a THR base this number on the age of the user and the type of workout.
   The user accepts or adjusts the rate when setting up the workout. During the workout itself, the
   program reads the heart rate, which is transmitted via the Polar ® heart rate chest strap or the
   pulse system sensors; and it uses this data to adjust the resistance. Manually raising the rate
   increases the intensity of the cardiovascular exercise.

   • Ca r dio
      This is a higher intensity workout for more fit users, emphasizing cardiovascular benefits and
       maximum fat burning. The workout program automatically adjusts the intensity level, based on
       the actual heart rate. The user selects the intensity level from 70 to 80 percent of the
       theoretical maximum (MHR).

                               Us er example : 35 y ears old (MHR 185) 80%
                               M HR

• T arget Interval
   The workout consists of three hills that target three heart rate goals. The first hill brings
the heart rate
   to 70 percent of MHR. The second hill increases the rate to 75 percent of MHR. The
third hill brings the
   heart rate to 80 percent of MHR. The valley always is defined as 65 percent of MHR.

                        Us er example : For a 35 y ear old (MHR 185) 70,75 &
                        80 %

 • T arget Hill
   This workout alternates between two target heart rates as quickly as possible.
    When setting up the workout, the user enters a target maximum heart rate. After a three minutes
    warm-up, the Intensity will increase, until the user reaches the 85 percent of MHR. Then,
    the intensity decreases, until the heart rate falls to the 65 percent of MHR. The program
    repeats these alternating intensity levels.

                            Us er example : 35 y ear old (MHR 185) 85%
                            M HR,

Different bike workouts require different setup steps. For a quick guide to the steps for setting up
any workout program
Refer also the chart titled ‘Con sole Operation’

The following section provides details on the steps themselves.

 4.2.1 Bike workout set u p steps

                                Goal         P reset program   He art rate program        Fitn ess test

     Q uick                                                            F at                  F itness
                            D ista nce          Interval
     S tart                                                            Bu rn                   T est

  •Press Quick Start                         •Press Interval       •Press Fat Burn       •Press Fitness Test
  •Begin workout                             •Enter time           •Enter time           •Enter age
                                             •Select level         •Enter age            •Enter gender
                           Calories          •Begin workout        •Select THR           •Select condition
                                                                   •Begin workout        •Enter weight
                                                                                         •Begin workout
       M ode
                              T i me              Hi ll               Cardio

                                             •Press Hill           •Press Cardio
                        •Press the desired   •Enter time           •Enter time
     Manual              button              •Select level         •Enter age
                        •Enter the desired   •Begin workout        •Select THR
  •Press Manual           goal v alue.                             •Begin workout
  •Enter time           •Select a workout
  •Select level         •Run through the
  •Begin workout         s et-up steps for
                         the s elected
                         workout                                      T arget
                        •Begin workout                                Interval

      Bi ke                                  •Press Mountain    •Press Target Interval
      Mode                                   •Enter time        •Enter time
                                             •Select level      •Enter age
                                             •Begin workout     •Select THR
                                                                •Begin workout
     Cons tant

                                                                       T arget
                                                P ower
  •Press the desired                                                     Hi ll
  •Select a workout                          •Press Power          •Press Target Hill
  •Run through the                           •Enter time           •Enter time
   s et-up s teps for                        •Select level         •Enter age
   the s elected                             •Begin workout        •Select THR
   workout                                                         •Begin workout
  •Begin workout

4.2.2 T o begin any workout
•      Commence pedaling or press S tart to activate the console.

         -The MESSAGE CENTER displays the prompt; ‘SELECT WORKOUT OR PRESS QUICK
         -Select and use Qu ick S tart

•      Qu ick Start is the fastest way to begin exercising, and it bypasses the steps of selecting
      a specific workout program. At the MESSAGE CENTER prompt to select a workout, press
      the Qu ic k S tart key. The workout begins at an intensity level that remains the same unless
      manually changed.

•      If a key is not selected within in 10 seconds of the commencement of pedaling, the
       console automatically defaults to a M an ual workout. If the user stops pedaling for more
       than 10 seconds, the console will shut down.
•      Start workout.

4.2.3 S e lecting a goal
    Workouts can be programmed to target certain type of goals: Dis tance / Calories / T ime
    The Dis tance, Calories, T ime, Goal features are designed to promote weight loss and weight
    The user sets a Dis tance, Calories, T ime Goal during the workout setup. Once the goal is met,
       the workout
    automatically commences a cool down phase and ends thereafter.

    To use this feature:
    - Press the Dis tance (Calories, T ime) key when prompted to select a workout.
    - Enter the desired Dis tance (Calories, T ime) goal value.
    - Select either the P r eset Program or Heart R ate Program workout.
    - Complete the set-up steps for the selected workout.
    - Begin the workout

•       If the user does not select a Goal, the console defaults automatically to T ime.

    4.2.4 Selecting a workout mode
      Two workout mode options on the bike feature alternate ways to vary workouts.
    •Bike M ode : This workout mode simulates the experience of riding a real bicycle. The rate of
      calories burned and total distance traveled increase automatically as the user increases
      the pedaling speed. This mode can be used with all workouts, except for Fa t Bu rn, Cardio,
     T a rget In terval and T arget Hill. To select Bike mode, press Bike M ode key.

    •Constant Cal / Hr M ode : This workout mode enables a user to maintain a consistent rate of
      calories burned per hour. As the pedaling speed increases, the resistance level automatically
      decreases. As the pedaling speed decreases, the resistance level automatically increases.
      This mode can be used with all workouts. To select it, press the Con stant CAL./Hr. key.

      If the user selects a Fa t Bu rn, Cardio, T arget In terval or T arget Hill workout during the setup,
      the basic mode is Constant Cal/Hr. For all other workouts, the basic mode is Bike.
      The user may select or change a mode during a workout setup or during a workout.

    If the user does not select a mode the
    console will default to bik e mode

4.2.5 Selecting a workout

    When prompted by the MESSAGE CENTER to select a workout, press the key of the desired
                            (M a nual, Preset program, Heart rate program).

•    Heart rate program is selected only in the Constance Cal./Hr Mode. In the Bike Mode, if the
user selects a
    Heart rate program, the mode is changed to the Constance Cal./Hr Mode.

•    Complete the set-up steps for the selected workout.

En tering time

•    When prompted by the MESSAGE CENTER : ‘ENTER TIMER : 1-60’, use the ARROW KEYS to
increase or decrease
    the displayed time to the desired value, or key in the desired value with the NUMERIC
• Press ENTER.

S e lecting and a djusting th e intensity level
The bike provides a selection of 25 intensity levels. The intensity level appears in the WORKOUT
PROFILE window as
rows of lights arranged in columns.
Selecting a low intensity level at first is recommended. As physical conditioning improves, levels
can increase.

• When prompted by the MESSAGE CENTER : ‘ ENTER LEVEL 1-25’, use the ARROW                  keys to
increase or
 decrease the displayed intensity level or target heart rate to the desired value,
 or key in the desired value with the NUMERIC KEYPAD.
• Press En ter.

En tering age
-When prompted by the MESSAGE CENTER : ‘ENTER AGE 10-99’ , use the ARROW KEYS
 to increase or decrease the displayed age to the correct value, or key in the correct value with
- Press En ter.

※ Bike workouts that set a He art R ate Program first calculate the user’s theoretical maximum
   heart rate* by subtracting the user’s age from the number 220. Then, the programs calculate
   the target zone as a percentage of the theoretical maximum.

 Adjusting T HR (Target Heart R ate)
 - Program : Far Burn, Cardio
 - Fat Burn : 50 / 65%
 - Cardio       : 70 / 80%
 - Use the AR R OW keys to increase or decrease the displayed THR or key in the desired value
    with the NUMERIC KEYPAD.
  - Press ENTER

 En tering weight
 - When prompted by the MESSAGE CENTER : ‘ENTER WEIGHT FOR METs ’ , use the AR R OW
    to increase or decrease the displayed weight to the correct value, or key in the correct value
    with the NUMERICKEYPAD
 - Press ENTER

  En tering Calories
  - When prompted by the MESSAGE CENTER : ‘ENTER CALORIES’ , use the ARROW KEYS
     to increase or decrease the displayed calories to the correct value, or key in the correct value
     with the NUMERICKEYPAD
  - Press ENTER

  En tering Distance
  - When prompted by the MESSAGE CENTER : ‘ENTER DISTANCE’ , use the ARROW KEYS
     to increase or decrease the displayed distance to the correct value, or key in the correct value
     with the NUMERICKEYPAD
  - Press ENTER

  W h en e ntered incorrect data
  - Press Clear
  - Enter correct data
  - Press ENTER

4.2.6 S witching workouts ‘on-the-fly’
 It is possible, during a workout, to switch to another workout program. After a switch, the
 console retains all the progress information about the workout since its beginning.
 To change workouts on the fly, simply press the key for the desired new workout.

4.2.7 Pausing workouts
 To pause a workout, simply stop pedaling, to continue the workout, resume pedaling.
 The pause duration lasts 60 seconds, after which, the console automatically shuts down.

4.2.8 Ending workouts early
 - To end a workout before the pre-set duration expires, press Clear once.
 - If the user presses ENTER, the console displays a workout summary, which includes the
   distance traveled, the total calories burned, and other statistics.
   If the user presses Clear a second time, the original workout will recommence.

The Fitness Test workout measures cardiovascular fitness and can be used to monitor improvements
in endurance every four to six weeks. The user must grasp the pulse sensors when exercising or wear
a heart rate chest strap, as the test score calculation is based on a heart rate reading.
The workout consist of three steps, 2 minutes warming up, 6 minutes workout, 2 minutes cool down.

The Fitness Test is considered to be a sub-max VO2 (volume of oxygen) test. It gauges how
well the heart supplies oxygenated blood to the exercising muscles, and how efficiently those
muscles receive oxygen from the blood. Physicians and exercise physiologists generally regard
this test as a good measure of aerobic capacity.

Please note that the estimated VO2 max scores achieved will be 10 percent to15 percent lower on
stationary exercise bikes than those achieved on treadmill.
Stationary cycling has a higher rate of isolated muscle fatigue of the quadriceps when compared
to walking/running on a treadmill, climbing on a stair climber, or utilizing a cross -trainer.
This higher rate of fatigue corresponds to lower levels of estimated VO2 max scores.

4.3.1 T o set u p the Fitness Test
- Press the Fitn ess T est.
- Enter the user’s age and gender as the monitor’s message.
- The message center displays the prompt, ‘DO YOU EXERCISE 3 TIME PER WEEK DURING
  Select 1. or 2.
- Enter the use’s weight.
- The console commences the workout.
- The console will read the user's heart rate, calculate a fitness score, and display the score

Note : To receive a proper Fit Test score, the work must be done within a training zone.
       That is 40/60 RPM (average 50 RPM) pedaling. The message center displays RPM, and
       the workout profile displays shapes, made of columns of lights, that represent the range
       of RPM.


After the ten minutes, Fitness Test is completed and a Fitness Test score will be displayed.

The console will not accept :
- Heart rates less than 52 or greater than 200 beats per minute
- Body weights less than 75 pounds (34 kg) or greater than 400 pounds (182 kg)
- Ages below 10 or over 99 years
- Input data that exceeds human ability.

4.3.2 Important measuring instructions
 It is important to take the Fitness Test under similar circumstances each time. The heart rate is
 dependent on many factors, including:
- Amount of sleep on the previous night : at least seven hours is recommended
- Time of a day
- Time you last ate : two to four hours after the last meal is recommended
- Time since you last drank a liquid containing caffeine or alcohol, or smoked a cigarette :
  at least four hours is recommended
- Time since you last exercised : at least six hours is recommended

For the most accurate Fitness Test results, you should perform the Fitness Test on three
consecutive days and average the three scores.

NOTE: To receive a proper Fitness Test score;
      1. The work done must be within a training heart rate zone that is 60 percent to 85
          percent of the theoretical maximum heart rate.
      2. The work done must be within a regular pedaling RPM zone that is ± 10 of 50 RPM.

  (Relative fitness classification for men)

            Men                    Es timated VO2 M ax (ml/kg/min) P er Age Category
           R a ting           20-29        30-39           40-49      50-59         60+
  Elite                        52+           51+            48+        45+             42+
  Excellent                   50-51         48-50          46-47      42-44        39-41
  Very Good                   47-49         45-47          43-45      40-41        36-38
  Above Average               44-46         42-44          40-42      37-39        33-35
  Average                     41-43         39-41          37-39      34-36        30-32
  Below Average               38-40         36-38          34-36      31-33        27-29
  Low                         35-37         33-35          31-33      28-30        24-26
  Very Low                     < 35         < 33           < 31        < 28         < 24

  (Relative fitness classification for women)

          W omen                   Es timated VO2 M ax (ml/kg/min) P er Age Category
           R a ting           20-29        30-39           40-49      50-59         60+
  Elite                        44+           42+            39+        35+             34+
  Excellent                   42-43         40-41          37-38      33-34        32-33
  Very Good                   39-41         37-39          35-36      31-32        30-31
  Above Average               37-38         35-36          32-34      29-30        28-29
  Average                     34-46         32-34          30-31      27-28        25-27
  Below Average               31-33         29-31          27-29      25-26        23-24
  Low                         28-30         27-28          25-26      22-24        20-22
  Very Low                     < 28         < 27           < 25        < 22         < 20

   Referenced in American College of Sports Medicine's "Guidelines for Exercise Testing and
   Prescription" (6th Ed. 2000).

5. Optional Settings

  Fitness club managers and others authorized, can use the Optional Settings.

  5.1 Optional Settings

         Setting        Default Value                           Description

                          ENGLISH       Determines the units of weight

   M ETS DISPLAY                        If this is enabled, the message center displays the M ETs
   (NO / YES)                           equivalent.

   CAL/HR DISPLAY                       If this is enabled, the message center displays the number
   (YES / NO)                           of calories burned per hour during the workout

                                        If this is selected, the console tests automatically the LED
   LED TEST                  -

  5.2 To enter the Optional Settings

    - Press the ‘2’ key on the Numeric keypad.
    - Press the ‘CLEAR’ button twice.
    - Press the ‘ENTER’ button.
      The message center displays prompt, ‘OPTION SETTING’.
    -To search the setting option, press an ARROW key UP or DOWN.
    - To select the desired option, press ENTER key.
    - To change the default, press an ARROW key UP or DOWN or use the Numeric keypad.
    - Press ENTER to select the new value or setting
    - To exit Optional Settings, press the CLEAR key.
      Then, the message center displays, ‘SELECT WORKOUT OR PRESS QUICK START’.


 The safety of the equipment can be maintained only if the equipment is examined regularly
 for damage or wear. Keep the equipment out of use until defective parts are repaired or
 replaced. Pay special attention to parts that are subject to wear as outlined in the Preventive
 Maintenance Schedule.

T h e following preventive maintenance tips will keep th e bike operating at peak performance.
- Locate the bike in a cool, dry place.
- Keep the pedal straps fastened securely when using the bike.
- Keep the display console free of fingerprints and salt build-up caused by sweat.
- Use a 100% c otton cloth, lightly moistened with water and mild liquid detergent, to
  clean the bike. Other fabrics, including paper towels, may scratch the surface.
  Do n ot u se a mmonia or acid-based c leaners.
- Long fingernails may damage or scratch the surface of the console; use the pad of the
 finger to press the selection buttons on the console.
- Clean the housing thoroughly on a regular basis.

NOT E : A non-abrasive cleaner and soft cotton cloth are strongly recommended for cleaning
 the exterior of the unit.

 Follow the schedule below to ensure proper operation of the product.

              Item              Weekly        Monthly     Bi-annually      Annually
   Display Console                 C               I
   Frame                           C                                           I
   Plastic Covers                  C               I
   Pedals and Straps               C               I
   Accessory Tray                  C               I
   Console Mounting Bolts                                       I

                                                           C : Clean, I : Inspect


 - Repeat the electrode moistening procedure.
   The electrodes must remain wet to pick up and transmit accurate heart rate readings.
 - Make sure the electrodes are flat against the skin.
 - Wash the belt transmitter regularly with mild soap and water.
 - Make sure the chest strap transmitter is within three feet, or one meter, of the heart rate
 - The chest strap is battery-operated and will stop functioning when the battery runs out.
   Contact JNB S PORTS or your Distributor for instructions on how to have the chest
   strap replaced.

 If the chest strap is worn near sources of electromagnetic signals, these signals may be
 strong enough to affect heart rate readings.
 Possible sources include:
 - Television sets and/or antennas, cell phones, computers, cars, high voltage power lines
   and motor driven exercise equipment.
 - Another heart rate transmitter within three feet, or one meter, may also cause abnormal
   heart rate readings.

 If the heart rate reading is erratic or missing, do the following:
 - Dry moist hands to prevent slipping.
 - Apply hands to both sensors, one in each hand.
 - Grasp the sensors firmly.
 - Apply constant pressure around the sensors.

When this bike is about to be discarded at the end of its useful life, the rechargeable battery
must first be removed and recycled. If an optional external power supply is present, it must be
disconnected before the battery is removed. To access the battery, remove the right-side
pedal crank and shroud. To remove the battery, disconnect the cable, and remove the two
screws holding the battery to the bracket

Verify the symptom and review the operating instructions. The problem may be unfamiliarity
with the product and its features and workouts.

Contact JNB S P ORTS or your Distributor .

 7. SPECIFICATIONS                                                       ●:Standard,   – : Unavailable

                                           Item                                           JB-4000         JR-4000

He art Rate M onitoring
• Polar Telemetry (Chest strap required)                                                     ●               ●
• Puls e Digital Heart Rate Monitoring with Digital Signal Processing                        ●               ●

W orkouts
• Manual                                                                                     ●               ●
• Quick Start                                                                                ●               ●
• Preset Program : Interval, Hill, Mountain, Power                                           ●               ●
• Heart Rate Program : Fat Burn, Cardio, Target Interval, Target Hill                        ●               ●
• Goal : Dis tance, Calories, Time                                                           ●               ●
• Mode : Bike mode, Constant Cal/Hr                                                          ●               ●
• Fitness Test                                                                               ●               ●

Display R eadout
• Elaps ed Time, Total Calories Burned, Calories, Burned Per Hour, W atts, METs,             ●               ●
 W orking Profile, Resistance Level, RPM, and Distance
• Heart Rate                                                                                 ●               ●

Display T ype
• LED : Alphanumeric message center, workout profile and time/level display below            ●               ●

S pecial Features
• Integrated Reading Rack, Integrated Accessory Tray, W ide Pedals                           ●               ●
 and On-the-Fly Programming
• Deluxe Racing Handlebars                                                                   ●               -
• Racing Handlebars                                                                          ●               -
• Side and Front Handlebars                                                                  -               ●
• Ratcheting Seat Adjustment                                                                 ●               ●
• Seat Height Adjustment (Shock – Absorption Comfort)                                        ●               -
• Comfort Seat                                                                               ●               ●
• Back Support and Seat                                                                      -               ●
• Res istance Levels                                                                         25              25
• Lev el Adjustment Cap                                                                      ●               ●

T echnical Specification
• Res istance (Watts)                                                                       500             500
• Maximum User Weight : 400 lbs (181 kg)                                                     ●               ●
• Power Requirements : Self – Powered                                                        ●               ●
• Auto Start : Brings power to console when user being pedaling                              ●               ●
• Dimens ions : Length x Width x Height ( cm )                                          115x59x140       137x65x133
• Packing Dimensions : Length x Width x Height ( cm )                                    117x60x78        145x70x78
• Net W eight (Gross Weight) (kg)                                                         46 ( 70 )       60 ( 85 )
• W arranty* ;
  2-y ear limited warranty on all mechanical and electrical components                       ●               ●
 1-y ear labor                                                                               ●               ●

* Warranties outside the Republic of Korea may vary


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