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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