自行車齒比速度計算機

選擇大盤齒數 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 65 70 (T) 　　選擇輪徑 29 inch (nominal) 28 inch (nominal) 27 inch (nominal) 26 inch (nominal) 700 X 56 / 56-622 / 29 inch 700 X 50 / 50-622 / 29 inch 700 X 44 / 44-622 / 29 inch 700 X 38 / 38-622 700 X 35 / 35-622 700 X 32 / 32-622 700 X 28 / 28-622 700 X 25 / 25-622 700 X 23 / 23-622 700 X 20 / 20-622 Tubular / Wide Tubular / Narrow 28 X 1 1/2 / 40-635 27 X 1 3/8 / 35-630 27 X 1 1/4 / 32-630 27 X 1 1/8 / 28-630 27 X 1 / 25-630 26 X 2.35 / 60-559 / MTB 26 X 2.125 / 54-559 / MTB 26 X 1.9 / 47-559 / MTB 26 X 1.5 / 38-559 / MTB 26 X 1.25 / 32-559 / MTB 26 X 1.0 / 25-559 / MTB 650 x 38b / 38-584 650B 650 x 28C / 28-571 / 26" road/tri 650 x 25C / 25-571 / 26" road/tri 650 x 23C / 23-571 / 26" road/tri 26 X 1 3/8 / 35-590 24 inch (nominal) 24 x 1 / 25-520 20 inch (nominal) 20 X 1.75 / 44-406 / BMX 20 X 1 1/4 / 28-451 18 x 1.5 / 40-355 17 x 1 1/4 / 28-369 16 x 1 1/2 / 40-349 16 x 1 3/8 / 35-349 16 x 1.5 / 37-305 吋