Gear chart using Gear Inches

For 26 X 1.5 / 38-559 / MTB tire with 175 mm cranks

With 7-speed "G" 13-15-17-20-23-26-30 Cassette

4826.3 %3835.7 %28
1391.872.753.6
15.4 %
1579.663.046.4
13.3 %
1770.255.641.0
17.6 %
2059.747.334.8
15.0 %
2351.941.130.3
13.0 %
2645.936.326.8
15.4 %
3039.831.523.2

This small version of the chart can be printed, cut out, and taped to your bicycle for reference.

91.872.753.6
79.663.046.4
70.255.641.0
59.747.334.8
51.941.130.3
45.936.326.8
39.831.523.2

Note: This is under construction, and the print function does not yet work.

Gear Chart by Sheldon Brown

http://sheldonbrown.com/gears