|
This section is for the gear heads out there. The gearing charts are provided to assist you in understanding wheel size, sprocket sizing, and gear ratios differences. It's generally better to spin faster than push the taller gearing. It also helps you out of the gate with quicker initial peddle strokes. Gearing might also need to be changed from track to track. Some riders never change their gearing, regardless of track or conditions. Always practice with different gearing before racing as this will change gate and jump timing. Ask several people for advice at the track for a starting point, thou opinions as to what is correct often varies from rider to rider. |
|
20" X 1.75" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
47.4 |
48.7 |
50.2 |
51.6 |
53.0 |
54.4 |
55.7 |
57.1 |
|
Freewheel 15 |
44.3 |
45.4 |
46.0 |
48.1 |
49.4 |
50.7 |
52.0 |
53.3 |
|
Freewheel 16 |
41.5 |
42.7 |
43.9 |
45.1 |
46.3 |
47.5 |
48.8 |
50.0 |
|
Freewheel 17 |
39.0 |
40.2 |
41.3 |
42.5 |
43.6 |
44.7 |
45.9 |
47.0 |
|
Freewheel 18 |
36.8 |
37.8 |
39.0 |
40.1 |
41.2 |
42.3 |
43.3 |
44.4 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
|
|
Freewheel 14 |
58.5 |
59.9 |
61.9 |
62.7 |
64.1 |
65.5 |
66.9 |
|
|
Freewheel 15 |
54.6 |
55.9 |
57.2 |
58.5 |
59.8 |
61.1 |
62.4 |
|
|
Freewheel 16 |
51.2 |
52.4 |
53.7 |
54.9 |
56.1 |
57.3 |
58.5 |
|
|
Freewheel 17 |
48.2 |
49.4 |
50.5 |
51.7 |
52.8 |
53.9 |
55.1 |
|
|
Freewheel 18 |
45.5 |
46.6 |
47.7 |
48.8 |
49.9 |
51.0 |
52.0 |
|
|
20" X 1.50" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
46.8 |
48.1 |
49.5 |
50.9 |
52.3 |
53.6 |
55.0 |
56.4 |
|
Freewheel 15 |
43.6 |
44.9 |
46.2 |
47.4 |
48.8 |
50.1 |
51.3 |
52.8 |
|
Freewheel 16 |
40.9 |
42.1 |
43.3 |
44.5 |
45.7 |
46.9 |
48.1 |
49.3 |
|
Freewheel 17 |
38.5 |
39.6 |
40.8 |
41.9 |
43.1 |
44.1 |
45.2 |
46.4 |
|
Freewheel 18 |
36.4 |
37.4 |
38.5 |
39.6 |
40.6 |
41.7 |
42.8 |
43.9 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
|
|
Freewheel 14 |
57.5 |
59.1 |
60.5 |
61.8 |
63.2 |
64.6 |
66.0 |
|
|
Freewheel 15 |
53.9 |
55.2 |
56.5 |
57.7 |
59.1 |
60.2 |
61.6 |
|
|
Freewheel 16 |
50.5 |
51.7 |
52.9 |
54.1 |
55.3 |
56.5 |
57.7 |
|
|
Freewheel 17 |
47.5 |
48.7 |
49.8 |
51.0 |
52.2 |
53.1 |
54.3 |
|
|
Freewheel 18 |
44.9 |
46.0 |
47.0 |
48.1 |
49.2 |
50.3 |
51.3 |
|
|
20" X 1.3/8" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
51.0 |
52.5 |
54.0 |
55.5 |
57.0 |
58.5 |
60.0 |
61.5 |
|
Freewheel 15 |
47.6 |
49.0 |
50.4 |
51.6 |
53.2 |
54.6 |
56.0 |
57.4 |
|
Freewheel 16 |
44.6 |
45.9 |
47.3 |
48.6 |
49.9 |
51.2 |
52.5 |
53.9 |
|
Freewheel 17 |
42.0 |
43.2 |
44.5 |
45.7 |
47.0 |
48.2 |
49.4 |
50.7 |
|
Freewheel 18 |
39.7 |
40.7 |
42.0 |
43.2 |
44.4 |
45.5 |
46.7 |
47.9 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
|
|
Freewheel 14 |
63.0 |
64.5 |
66.0 |
67.5 |
69.0 |
70.5 |
72.0 |
|
|
Freewheel 15 |
58.8 |
60.2 |
61.6 |
63.0 |
64.4 |
65.8 |
67.2 |
|
|
Freewheel 16 |
55.2 |
56.5 |
57.8 |
59.1 |
60.4 |
61.7 |
63.0 |
|
|
Freewheel 17 |
51.9 |
53.2 |
54.4 |
55.6 |
56.9 |
58.1 |
59.3 |
|
|
Freewheel 18 |
49.0 |
50.2 |
51.4 |
52.5 |
53.7 |
54.9 |
56.0 |
|
|
20" X 1.1/8" Gear Chart |
||||||||
|
Sprocket |
34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
|
Freewheel 14 |
48.6 |
50.0 |
51.4 |
52.8 |
54.3 |
55.7 |
57.1 |
58.6 |
|
Freewheel 15 |
45.3 |
46.7 |
48.0 |
49.3 |
50.7 |
52.0 |
53.3 |
54.7 |
|
Freewheel 16 |
42.5 |
43.8 |
45.0 |
46.2 |
47.5 |
48.7 |
50.0 |
51.2 |
|
Freewheel 17 |
40.0 |
41.2 |
42.3 |
43.5 |
44.7 |
45.9 |
47.0 |
48.2 |
|
Freewheel 18 |
37.7 |
38.8 |
40.0 |
41.1 |
42.2 |
43.3 |
44.4 |
45.6 |
|
Sprocket |
42 | 43 | 44 | 45 | 46 | 47 | 48 | |
|
Freewheel 14 |
60.0 |
61.4 |
62.8 |
64.3 |
65.7 |
67.1 |
68.6 |
|
|
Freewheel 15 |
56.0 |
57.3 |
58.7 |
60.0 |
61.3 |
62.7 |
64.0 |
|
|
Freewheel 16 |
52.5 |
53.7 |
55.0 |
56.2 |
57.5 |
58.7 |
60.0 |
|
|
Freewheel 17 |
49.4 |
50.6 |
51.8 |
52.9 |
54.1 |
55.3 |
56.5 |
|
|
Freewheel 18 |
46.7 |
47.8 |
48.9 |
50.0 |
51.1 |
52.2 |
53.3 |
|
|
24" X 1.75" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
58.3 |
60.0 |
61.7 |
63.3 |
65.0 |
66.9 |
68.6 |
70.3 |
|
Freewheel 15 |
54.4 |
56.0 |
57.6 |
59.3 |
60.7 |
62.4 |
64.1 |
65.5 |
|
Freewheel 16 |
51.0 |
52.5 |
54.0 |
55.5 |
57.0 |
58.5 |
60.0 |
61.4 |
|
Freewheel 17 |
48.0 |
49.4 |
50.0 |
52.2 |
53.6 |
55.1 |
56.5 |
57.9 |
|
Freewheel 18 |
45.3 |
46.5 |
48.0 |
49.4 |
50.7 |
52.0 |
53.3 |
54.7 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
|
|
Freewheel 14 |
72.0 |
73.7 |
75.3 |
77.0 |
78.9 |
80.6 |
82.3 |
|
|
Freewheel 15 |
67.2 |
68.9 |
70.3 |
72.0 |
73.7 |
75.1 |
76.8 |
|
|
Freewheel 16 |
63.1 |
64.5 |
66.0 |
67.4 |
69.1 |
70.5 |
72.0 |
|
|
Freewheel 17 |
59.3 |
60.7 |
62.1 |
63.6 |
65.0 |
66.2 |
67.7 |
|
|
Freewheel 18 |
56.0 |
57.3 |
58.5 |
60.0 |
61.4 |
62.6 |
64.1 |
|
|
24" X 1.50" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
55.9 |
57.5 |
59.1 |
60.7 |
62.3 |
64.2 |
65.8 |
67.4 |
|
Freewheel 15 |
52.1 |
53.7 |
55.2 |
56.7 |
58.2 |
59.8 |
61.3 |
62.8 |
|
Freewheel 16 |
48.4 |
50.3 |
51.8 |
53.2 |
54.6 |
56.0 |
57.5 |
58.9 |
|
Freewheel 17 |
46.0 |
47.3 |
48.7 |
50.0 |
51.4 |
52.8 |
54.1 |
55.5 |
|
Freewheel 18 |
43.4 |
44.7 |
46.0 |
47.2 |
48.5 |
49.8 |
51.1 |
52.4 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
|
|
Freewheel 14 |
69.0 |
70.6 |
72.2 |
73.8 |
75.7 |
77.3 |
78.9 |
|
|
Freewheel 15 |
64.4 |
65.9 |
67.4 |
69.0 |
70.6 |
72.0 |
73.6 |
|
|
Freewheel 16 |
60.3 |
61.8 |
63.2 |
64.6 |
66.2 |
67.6 |
69.0 |
|
|
Freewheel 17 |
56.8 |
58.8 |
59.5 |
60.8 |
62.3 |
63.5 |
64.8 |
|
|
Freewheel 18 |
53.7 |
54.9 |
56.2 |
57.5 |
58.9 |
60.0 |
61.4 |
|
|
24" X 1.3/8" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
58.3 |
60.0 |
61.7 |
63.3 |
65.0 |
66.9 |
68.6 |
70.3 |
|
Freewheel 15 |
54.4 |
56.0 |
57.6 |
59.3 |
60.7 |
62.4 |
64.1 |
65.5 |
|
Freewheel 16 |
51.1 |
52.5 |
54.0 |
55.5 |
57.0 |
58.5 |
60.0 |
61.4 |
|
Freewheel 17 |
48.0 |
49.4 |
50.8 |
52.2 |
53.6 |
55.1 |
56.5 |
57.9 |
|
Freewheel 18 |
45.3 |
46.5 |
48.0 |
49.4 |
50.7 |
52.0 |
53.3 |
54.7 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
|
|
Freewheel 14 |
72.0 |
73.7 |
75.3 |
77.0 |
78.9 |
80.6 |
82.3 |
|
|
Freewheel 15 |
67.2 |
68.9 |
71.3 |
72.0 |
73.7 |
75.1 |
76.8 |
|
|
Freewheel 16 |
63.1 |
64.5 |
66.0 |
67.4 |
69.1 |
70.5 |
72.0 |
|
|
Freewheel 17 |
59.3 |
60.7 |
62.1 |
63.3 |
65.0 |
66.2 |
67.7 |
|
|
Freewheel 18 |
56.0 |
57.3 |
58.5 |
60.0 |
61.4 |
62.6 |
64.1 |
|
|
24" X 1.1/8" Gear Chart |
||||||||
|
Sprocket |
34 |
35 |
36 |
37 |
38 |
39 |
40 |
41 |
|
Freewheel 14 |
54.9 |
56.5 |
58.1 |
59.7 |
61.3 |
63.1 |
64.7 |
66.3 |
|
Freewheel 15 |
51.3 |
52.8 |
54.3 |
55.8 |
57.3 |
58.8 |
60.3 |
61.8 |
|
Freewheel 16 |
48.1 |
49.5 |
50.9 |
52.3 |
53.7 |
55.1 |
56.6 |
57.9 |
|
Freewheel 17 |
45.2 |
46.6 |
47.9 |
49.3 |
50.6 |
51.9 |
53.2 |
54.6 |
|
Freewheel 18 |
42.7 |
43.9 |
45.2 |
46.6 |
47.7 |
49.1 |
50.3 |
51.5 |
|
Sprocket |
42 |
43 |
44 |
45 |
46 |
47 |
48 | |