http://itunes.apple.com/us/app/id285554579?mt=8
Bicycle Gear Calculator — Bike Gears
By JPMartineau
"Designed by a cyclist, for cyclists, Bike Gears is the premier Bicycle Gear Calculator for the iPhone/iPod Touch. Calculate Gear Ratios, Gear Inches, Development and Gain Ratios using your bike's measurements. The app now has over 200 preset tire sizes and also lets you enter your own custom tire size for personalized measurements."
Source Apple iTune Store
Un autre produit similaire,également créé par un Québécois : bicalc, également sur iTunes app.
ReplyDeletehttp://itunes.apple.com/ca/app/bicalc/id348614460?mt=8