Bicycle chainring icon for front gear configuration in gear ratio calculator

前盤配置

設置前盤數量和齒數

2
1 2 3
1 T
2 T
Bicycle cassette cogs icon for rear gear configuration in gear ratio calculator

飛輪配置

設置飛輪數量和齒數

9
1 7 13
1 T
2 T
3 T
4 T
5 T
6 T
7 T
8 T
9 T
Bicycle wheel and tire configuration icon for gear ratio calculator

車輪設置

配置車輪尺寸、輪胎尺寸

mm
700mm + 25mm×2 = 750mm

收藏的配置

齒輪比對比表

單位:
當前配置
齒輪組合 齒輪比 踏頻速度對比
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
50-11T 4.55
28.8
31.7
34.5
37.4
40.3
43.2
46.1
48.9
51.8
54.7
57.6
60.5
63.3
66.2
69.1
72.0
50-12T 4.17
26.4
29.0
31.7
34.3
36.9
39.6
42.2
44.9
47.5
50.1
52.8
55.4
58.1
60.7
63.3
66.0
50-13T 3.85
24.4
26.8
29.2
31.7
34.1
36.5
39.0
41.4
43.8
46.3
48.7
51.2
53.6
56.0
58.5
60.9
50-15T 3.33
21.1
23.2
25.3
27.4
29.6
31.7
33.8
35.9
38.0
40.1
42.2
44.3
46.4
48.6
50.7
52.8
50-17T 2.94
18.6
20.5
22.4
24.2
26.1
27.9
29.8
31.7
33.5
35.4
37.3
39.1
41.0
42.8
44.7
46.6
50-19T 2.63
16.7
18.3
20.0
21.7
23.3
25.0
26.7
28.3
30.0
31.7
33.3
35.0
36.7
38.3
40.0
41.7
50-21T 2.38
15.1
16.6
18.1
19.6
21.1
22.6
24.1
25.6
27.1
28.7
30.2
31.7
33.2
34.7
36.2
37.7
50-24T 2.08
13.2
14.5
15.8
17.2
18.5
19.8
21.1
22.4
23.8
25.1
26.4
27.7
29.0
30.3
31.7
33.0
50-28T 1.79
11.3
12.4
13.6
14.7
15.8
17.0
18.1
19.2
20.4
21.5
22.6
23.8
24.9
26.0
27.1
28.3
50-32T 1.56
9.9
10.9
11.9
12.9
13.9
14.8
15.8
16.8
17.8
18.8
19.8
20.8
21.8
22.8
23.8
24.7
34-11T 3.09
19.6
21.5
23.5
25.4
27.4
29.4
31.3
33.3
35.2
37.2
39.2
41.1
43.1
45.0
47.0
48.9
34-12T 2.83
17.9
19.7
21.5
23.3
25.1
26.9
28.7
30.5
32.3
34.1
35.9
37.7
39.5
41.3
43.1
44.9
34-13T 2.62
16.6
18.2
19.9
21.5
23.2
24.8
26.5
28.2
29.8
31.5
33.1
34.8
36.4
38.1
39.8
41.4
34-15T 2.27
14.4
15.8
17.2
18.7
20.1
21.5
23.0
24.4
25.8
27.3
28.7
30.1
31.6
33.0
34.5
35.9
34-17T 2.00
12.7
13.9
15.2
16.5
17.7
19.0
20.3
21.5
22.8
24.1
25.3
26.6
27.9
29.1
30.4
31.7
34-19T 1.79
11.3
12.5
13.6
14.7
15.9
17.0
18.1
19.3
20.4
21.5
22.7
23.8
24.9
26.1
27.2
28.3
34-21T 1.62
10.3
11.3
12.3
13.3
14.4
15.4
16.4
17.4
18.5
19.5
20.5
21.5
22.6
23.6
24.6
25.6
34-24T 1.42
9.0
9.9
10.8
11.7
12.6
13.5
14.4
15.3
16.2
17.0
17.9
18.8
19.7
20.6
21.5
22.4
34-28T 1.21
7.7
8.5
9.2
10.0
10.8
11.5
12.3
13.1
13.8
14.6
15.4
16.2
16.9
17.7
18.5
19.2
34-32T 1.06
6.7
7.4
8.1
8.7
9.4
10.1
10.8
11.4
12.1
12.8
13.5
14.1
14.8
15.5
16.2
16.8
低速檔 (<20 km/h)
中速檔 (20-35 km/h)
高速檔 (35-50 km/h)
極速檔 (>50 km/h)
表格說明：表格顯示不同前盤-飛輪組合在各踏頻下的速度。計算包含車輪尺寸和輪胎厚度，輪胎越寬實際輪徑越大，速度相應增加。顏色編碼幫助快速識別不同速度範圍的檔位。齒輪比 = 前盤齒數 ÷ 飛輪齒數，數值越大速度越快。每個單元格上方顯示速度，下方顯示齒輪比。踏頻固定為50-125 RPM，每5 RPM展示。

齒比知識

了解自行車齒輪比和騎行性能