Common calculations to help you figure out tire size, ratio, and speed.
Ratio = (RPM x Tire Diameter) / (MPH x 336)
MPH = (RPM x Tire Diameter) / (Gear Ratio x 336)
RPM = (MPX x Gear Ratio x 336) / Tire Diameter
Tire Diameter = (MPH x Gear Ratio x 336) / RPM
Article Type:
How It Works
Category:
Tire & Wheel Tech