9600 rpm 9-tooth driver
Ratio Gear MPH
2.53 – 17/43 = 81.49
2.47 – 17/42 = 83.47
2.41 – 17/41 = 85.55
2.35 – 17/40 = 87.73
2.28 – 18/41 = 90.43
2.22 – 18/40 = 92.87
TROY PIERCE RACING
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Hand for figuring out your gearing and helpful with cluching decisions.
9600 rpm 9-tooth driver
Ratio Gear MPH
2.53 – 17/43 = 81.49
2.47 – 17/42 = 83.47
2.41 – 17/41 = 85.55
2.35 – 17/40 = 87.73
2.28 – 18/41 = 90.43
2.22 – 18/40 = 92.87
9800 rpm 9-tooth driver
Ratio Gear MPH
2.76 – 17/47 = 76.25
2.67 – 17/46 = 77.95
2.64 – 17/45 = 79.72
2.58 – 17/44 = 81.58
2.53 – 17/43 = 83.19
2.47 – 17/42 = 85.21
2.41 – 17/41 = 87.33
2.35 – 17/40 = 89.00
2.33 – 18/42 = 90.00
Find Us at:
33327 State Highway 11
Roseau, MN 56741
(218) 242-7949
