Track Gear Calculator

January 2, 2024

Tony never figured out you could swipe to find the closest ratio up or down from your current gear, so I added some arrows for him. Also some bug fixes and assorted under-the-hood things.

September 2, 2021

The Jonathan: Better support for smaller devices and larger typefaces.

March 23, 2021

The Michelle: Rebuilt from scratch to support newer versions of iOS. The Andrew: Wider range of configurable gears for sprinters who want to use serving plates as chainrings.

September 25, 2015

The Eric: Calculate your speed at a given RPM in a given gear. The Robbie: UI updates and polishes.

April 14, 2015

Includes Apple Watch support (the Will) and iPhone 6 and 6+ support (the Derek).

August 27, 2014

Metric Development (the Torkel): You have the option to choose either Imperial measurements (50x15 is a 90.0) or Metric measurements (50x15 is a 7.12).

November 20, 2013

Change wheel diameters (the Lindsay): Now you can select from the standard 27" nominal method for calculating gears, or more accurate actual wheel diameters. New FTUX (the Tara): It seems a lot of users haven't figured out that you can swipe the gear itself to increment gears up and down. Since we think this is the coolest part of the app, we've made it a little easier to find. Usability fix (the Cathy): got rid of a bug that caused weirdness if you swipe the gear inches really fast. Because weirdness is, you know, bad. At least in UI elements it is.

November 13, 2013

Even more new stuff, all user-requested: Customize your track bag (the Ian): Set up which gears should be available via swiping, so the calculator never suggests a gear you can't pull out of your track bag and put on your bike. Even more gears (the Jennie): 56 tooth chainring added, for when 55 teeth just aren't enough.

October 29, 2013

Tons of new stuff, all user-inspired: New feature (the Matti): Want to know the next gear up from your normal race gear? Swipe the gear inch measurement to move up or down in gears. Usability improvement (the Rob): Gear selection wheels are now both tapable and swipeable. New gears (the Jamie): 44, 54, and 55 tooth chainrings added.

October 21, 2013