MPH Calculator

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Are you Ready!!!!!!:

The season is here...   It wont be long now until we start smelling race fuel and seeing big numbers. 



MPH Calculator

Fill in the appropriate information below, Then click when finished.

Engine RPM

Chain Case Gear ratio

Clutch ratio (1.00 w/o Overdrive)

Driver diameter in inches (7.07, 7.75.) 

The speed in MPH is miles per hour.

The same DRIVER size and RPM will give the following speeds based on the following gear ratio changes.

1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75

These speeds are accurate to with in .020mph