For 700 X 25 / 25-622 tire with 172.5 mm cranks and 22 tooth sprocket

	38 / 22
1.74	79.3
17.6 %
1.48	67.4
19.4 %
1.24	56.5
24.0 %
1.000	45.6
23.5 %
0.81	36.9
19.1 %
0.68	31.0
19.3 %
0.57	26.0

With SRAM/Sachs Spectro new-style 7-speed Hub

Gear chart using Gear Inches

For 700 X 25 / 25-622 tire with 175 mm cranks

With 10-speed 12-13-14-15-16-17-19-21-24-27 Cassette

	30	30.0 %	39	33.3 %	52
12	66.0		85.7		114.3
8.3 %
13	60.9		79.1		105.5
7.7 %
14	56.5		73.5		98.0
7.1 %
15	52.8		68.6		91.5
6.7 %
16	49.5		64.3		85.7
6.3 %
17	46.6		60.5		80.7
11.8 %
19	41.7		54.1		72.2
10.5 %
21	37.7		49.0		65.3
14.3 %
24	33.0		42.9		57.2
12.5 %
27	29.3		38.1		50.8