If you ride a fixed gear bike, you know that changing the tooth-count on your chainring or cog can change the way you ride. You also know at some point you will hit your maximum cadence (the number of revolutions of the crank per minute); how fast you say? Chainvetica will help. How is different then the all the other iphone gear-ratio apps? Why the clean helvetica type design with an analogous orange palette.

Sean