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Deleted Member 4613
Guest
Grubee allows the selection of a 4:1 belt drive, where I believe all the
Chinese belt drives are 5:1. This small option of 4:1 brings the top speed
of 4 strokes to reach in the 30's mph, easily by choosing the right
drive sprocket and wheel sprocket. Example: running at 6800
rpm, with a 4:1 belt drive and a 10T drive sprocket, and 41T rear
wheel sprocket calculates to: 31.9mph. A 5:1 belt drive lowers
the top speed to mid-20's.
Chinese belt drives are 5:1. This small option of 4:1 brings the top speed
of 4 strokes to reach in the 30's mph, easily by choosing the right
drive sprocket and wheel sprocket. Example: running at 6800
rpm, with a 4:1 belt drive and a 10T drive sprocket, and 41T rear
wheel sprocket calculates to: 31.9mph. A 5:1 belt drive lowers
the top speed to mid-20's.