SK Speed Part Number: M2889650

Power-Speed Calculator

Using information such as tire size, gear ratios, horsepower, and displacement, this handy slide tool works out the relationship between

E.T., M.P.H. and power to weight ratios

Tire diameter to speed and gear ratio

Engine displacement to compression ratio

Horsepower measured at flywheel

Horsepower rating are calculated for rear wheel horsepower