Bicycle Shop
[Date] [Name] [Address] Dear [Name] Our records indicate that [Number of years] years ago you purchased a bicycle for your son [Daughter], [name of child] for his/her birthday, which falls on [date]. If he is ready for a larger bicycle, you may wish to surprise him on his upcoming birthday with one of the beautiful models we presently have available in our shop which would be suitable for a young man/woman his/her age. We do offer a modest trade-in allowance and, of course, will be happy to deliver the bicycle to your home in order to keep it "under wraps" until that special day. Give it a thought and if you feel that [name of child] would be pleased, come in to visit us at your convenience and I will show you our stock. Yours Sincerely [Your Name] [Your Title]