Bicycle Gearchart Calculator

Please note: This application is an unabashedly direct rip-off of Mike Sherman's Bicycle Gear Calculator. All I did was add a bit of code to generate the required capacities for the front and rear derailleurs, since I find that information useful and Mike's original doesn't include it.


Required Rear Derailleur Capacity:

Chainrings Wheel Crank

Required Front Derailleur Capacity:

Semi-Log Graph

Sheldon Brown's Gain Ratio Chart

Rollout Table     Inches Meters