This chart is for use with 700Cx23, move your mouse over the table to line up the desired chainring/sprocket combination, hover over the gear inch cell to see how many skid patches you will have (coming soon).
  13 14 15 16 17 18 19 20 21
39 78.9 73.3 68.4 64.1 60.3 57.0 54.0 51.3 48.8
40 80.9 75.1 70.1 65.7 61.9 58.4 55.4 52.6 50.1
41 82.9 77.0 71.9 67.4 63.4 59.9 56.8 53.9 51.3
42 85.0 78.9 73.6 69.0 65.0 61.4 58.1 55.2 52.6
43 87.0 80.8 75.4 70.7 66.5 62.8 59.5 56.5 53.9
44 89.0 82.7 77.1 72.3 68.1 64.3 60.9 57.9 55.1
45 91.0 84.5 78.9 74.0 69.6 65.7 62.3 59.2 56.4
46 93.1 86.4 80.7 75.6 71.2 67.2 63.7 60.5 57.6
47 95.1 88.3 82.4 77.3 72.7 68.7 65.1 61.8 58.9
48 97.1 90.2 84.2 78.9 74.3 70.1 66.4 63.1 60.1
49 99.1 92.0 85.9 80.5 75.8 71.6 67.8 64.4 61.4
50 101.2 93.9 87.7 82.2 77.4 73.1 69.2 65.7 62.6
51 103.2 95.8 89.4 83.8 78.9 74.5 70.6 67.1 63.9
52 105.2 97.7 91.2 85.5 80.4 76.0 72.0 68.4 65.1