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1/32
& 1/24 Slot Car Gear Ratio Chart:
8 tooth pinion
36 37 38 39
Tire Size:
.785 5.73 5.89 6.05 6.21
.780 5.77 5.93 6.09 6.25
.775 5.81 5.97 6.13 6.29
.770 5.84 6.00 6.17 6.32
.765 5.88 6.04 6.21 6.36
.760 5.92 6.08 6.25 6.40
.755 5.96 6.12 6.29 6.44
9 tooth pinion 48 pitch gears I 64 pitch gears
29
30
31
32
35
36
37
38
39
Tire Size;
.875 (7/8) 3.68
3.81 3.94
4.06 4.44
4.57 4.70
4.83 4.95
.812 (13/16) 3.97
4.11 4.24
4.38 4.79
4.93 5.06
5.20 5.34
.800
4.03 4.17
4.30
4.45 4.86
5.00 5.14
5.28 5.42
.795
4.05 4.20
4.33
4.48 4.89
5.03 5.17
5.31 5.45
.790
4.08 4.23
4.36
4.50 4.92
5.06 5.20
5.34 5.49
.785
4.10 4.25
4.39
4.53 4.95
5.10 5.24
5.38 5.52
.780
4.13 4.27
4.42
4.56 4.99
5.13 5.27
5.41 5.55
.775
4.16 4.30
4.44
4.59 5.02
5.16 5.30
5.45 5.59
.770
4.18 4.32
4.47
4.62 5.05
5.19 5.34
5.48 5.63
.765
4.21 4.36
4.50
4.65 5.08
5.23 5.37
5.52 5.66
.760
4.24 4.39
4.53
4.68 5.12
5.26 5.41
5.56 5.70
10 tooth pinion
31
32
35
36
37
38
39
40
41
Tire Size;
.812 (13/16) 3.82
3.94
4.31 4.43
4.56 4.68
4.80 4.92
5.05
.800
3.88
4.00
4.38 4.50
4.63 4.75
4.88
5.00 5.13
.795
3.90
4.03
4.40 4.53
4.65 4.78
4.91
5.03 5.16
.790
3.92
4.05
4.43 4.52
4.68 4.81
4.94
5.06 5.19
.785
3.95
4.08
4.46 4.59
4.71 4.84
4.97
5.10 5.22
.780
3.97
4.10
4.49 4.62
4.74 4.87
5.00
5.13 5.26
.775
4.00
4.13
4.52 4.65
4.77 4.90
5.03
5.16 5.29
.770
4.03
4.16
4.55 4.68
4.81 4.94
5.06
5.19 5.32
.765
4.05
4.18
4.58 4.71
4.84 4.97
5.10
5.23 5.36
.760
4.08
4.21
4.60 4.74
4.87 5.00
5.13
5.26 5.39
.755
4.11
4.24
4.64 4.77
4.90 5.03
5.17
5.30 5.43
11 tooth pinion
36
37
38
39
40
41
42
Tire Size;
.812 (13/16)
4.03 4.14
4.25 4.37
4.48
4.59
4.70
.800
4.09 4.20
4.32 4.43
4.55
4.66
4.77
.795
4.12 4.23
4.35 4.46
4.57
4.69
4.80
.790
4.14 4.26
4.37 4.49
4.60
4.72
4.83
.785
4.17 4.28
4.40 4.52
4.63
4.75
4.86
.780
4.20 4.31
4.43 4.55
4.66
4.78
4.90
.775
4.22 4.34
4.46 4.57
4.69
4.81
4.93
.770
4.25 4.37
4.49 4.60
4.72
4.84
4.96
.765
4.28 4.39
4.52 4.63
4.75
4.87
4.99
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