23T 24T 26T 28T 29T 30T 31T 35T 37T 39T 40T 42T 45T 420 chain pitch rear sprocket suitable for monkey 3 stud fitment. compatible with standard Honda and Chinese bikes also.
In theory increasing the number of teeth on the front sprocket and/or decreasing the number of teeth on the rear sprocket you will result in higher top speed, lower acceleration and better fuel economy. And vice versa: decreasing the number of teeth on the front sprocket and/or increasing the number of teeth on the rear sprocket will result in lower top speed, higher acceleration and worse fuel economy. However whilst generally true in practice this is not allways the case, mostly due to the power output of the machine at certain revs being higher or lower than at others. So use the following table as a guide only, to achieve your desired result will often involve some trial and error. It should also be noted that some models cannot accommodate larger front sprockets: check before ordering. Often the fitting of larger sprockets may require a longer chain
R
e
a
r
S
p
r
o
c
k
e
t
|
Front Sprocket
|
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
30
|
3.00
|
2.73
|
2.50
|
2.31
|
2.14
|
2.00
|
1.88
|
1.76
|
1.67
|
1.58
|
31
|
3.10
|
2.82
|
2.58
|
2.38
|
2.21
|
2.07
|
1.94
|
1.82
|
1.72
|
1.63
|
32
|
3.20
|
2.91
|
2.67
|
2.46
|
2.29
|
2.13
|
2.00
|
1.88
|
1.78
|
1.68
|
33
|
3.30
|
3.00
|
2.75
|
2.54
|
2.36
|
2.20
|
2.06
|
1.94
|
1.83
|
1.74
|
34
|
3.40
|
3.09
|
2.83
|
2.62
|
2.43
|
2.27
|
2.13
|
2.00
|
1.89
|
1.79
|
35
|
3.50
|
3.18
|
2.92
|
2.69
|
2.50
|
2.33
|
2.19
|
2.06
|
1.94
|
1.84
|
36
|
3.60
|
3.27
|
3.00
|
2.77
|
2.57
|
2.40
|
2.25
|
2.12
|
2.00
|
1.89
|
37
|
3.70
|
3.36
|
3.08
|
2.85
|
2.64
|
2.47
|
2.31
|
2.18
|
2.06
|
1.95
|
38
|
3.80
|
3.45
|
3.17
|
2.92
|
2.71
|
2.53
|
2.38
|
2.24
|
2.11
|
2.00
|
39
|
3.90
|
3.55
|
3.25
|
3.00
|
2.79
|
2.60
|
2.44
|
2.29
|
2.17
|
2.05
|
40
|
4.00
|
3.64
|
3.33
|
3.08
|
2.86
|
2.67
|
2.50
|
2.35
|
2.22
|
2.11
|
41
|
4.10
|
3.73
|
3.42
|
3.15
|
2.93
|
2.73
|
2.56
|
2.41
|
2.28
|
2.16
|
42
|
4.20
|
3.82
|
3.50
|
3.23
|
3.00
|
2.80
|
2.63
|
2.47
|
2.33
|
2.21
|
43
|
4.30
|
3.91
|
3.58
|
3.31
|
3.07
|
2.87
|
2.69
|
2.53
|
2.39
|
2.26
|
44
|
4.40
|
4.00
|
3.67
|
3.38
|
3.14
|
2.93
|
2.75
|
2.59
|
2.44
|
2.32
|
45
|
4.50
|
4.09
|
3.75
|
3.46
|
3.21
|
3.00
|
2.81
|
2.65
|
2.50
|
2.37
|
46
|
4.60
|
4.18
|
3.83
|
3.54
|
3.29
|
3.07
|
2.88
|
2.71
|
2.56
|
2.42
|
47
|
4.70
|
4.27
|
3.92
|
3.62
|
3.36
|
3.13
|
2.94
|
2.76
|
2.61
|
2.47
|
48
|
4.80
|
4.36
|
4.00
|
3.69
|
3.43
|
3.20
|
3.00
|
2.82
|
2.67
|
2.53
|
49
|
4.90
|
4.45
|
4.08
|
3.77
|
3.50
|
3.27
|
3.06
|
2.88
|
2.72
|
2.58
|
50
|
5.00
|
4.55
|
4.17
|
3.85
|
3.57
|
3.33
|
3.13
|
2.94
|
2.78
|
2.63
|
51
|
6.10
|
4.64
|
4.25
|
3.92
|
3.64
|
3.40
|
3.19
|
3.00
|
2.83
|
2.68
|
52
|
6.20
|
4.73
|
4.33
|
4.00
|
3.71
|
3.47
|
3.25
|
3.06
|
2.89
|
2.74
|
53
|
6.30
|
4.82
|
4.42
|
4.08
|
3.79
|
3.53
|
3.31
|
3.12
|
2.94
|
2.79
|
54
|
6.40
|
4.91
|
4.50
|
4.15
|
3.86
|
3.60
|
3.38
|
3.18
|
3.00
|
2.84
|
55
|
6.50
|
5.00
|
4.58
|
4.23
|
3.93
|
3.67
|
3.44
|
3.24
|
3.06
|
2.89
|
56
|
6.60
|
5.09
|
4.67
|
4.31
|
4.00
|
3.73
|
3.50
|
3.29
|
3.11
|
2.95
|
57
|
6.70
|
5.18
|
4.75
|
4.38
|
4.07
|
3.80
|
3.56
|
3.35
|
3.17
|
3.00
|
58
|
6.80
|
5.27
|
4.83
|
4.46
|
4.14
|
3.87
|
3.63
|
3.41
|
3.22
|
3.05
|
59
|
6.90
|
5.36
|
4.92
|
4.54
|
4.21
|
3.93
|
3.69
|
3.47
|
3.28
|
3.11
|
60
|
7.00
|
5.45
|
5.00
|
4.62
|
4.29
|
4.00
|
3.75
|
3.53
|
3.33
|
3.16
|
61
|
7.10
|
5.55
|
5.08
|
4.69
|
4.36
|
4.07
|
3.81
|
3.59
|
3.39
|
3.21
|
62
|
7.20
|
5.64
|
5.17
|
4.77
|
4.43
|
4.13
|
3.88
|
3.65
|
3.44
|
3.26
|
Lowering the ratio increases top end speed - Increasing the ratio increases acceleration and bottom end power. |