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Single Speed Calculator

iPhone / iPad
  • Utilities
  • Sports
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Download from AppStore

The Single Speed Calculator App determines the best possible cog and chainring configurations for your bike.

Simply enter your chainstay length, max. & min. cogs and max. & min. chainrings, and it will show you all possible configurations that will fit your bike.

Check out additional apps: Spoke Length Calculator; Wheel Builder and Oregon Mountain Bike Trail Maps.