Speedometer Gear Calculator, Get diameter, speedometer error, RPM, rim width fitment, and vehicle-based matches.

Speedometer Gear Calculator, Determine drive and driven gear teeth based on tire diameter, axle ratio, and gear specifications. Motorcycle speed and sprocket calculator with bike database for gearing, sprockets, tires and chains of over 1900 bikes. Read on to learn more about gear ratio and its importance in our lives. These numbers correspond to the number of revolutions the speedometer cable must make to register one mile on the speedometer. Choose from a list of common transmissions or enter your own values. Speedo Gear Calculator by Wallace Racing Todays date is 6/16/2026 Wallace Racing BACK to Calculators Speedo Gear Calculator At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. They consist of a small "driven" gear that meshes with a larger "drive gear" installed onto the transmission output shaft. Most older GM speedometers are 1000. This is very useful when there is no established baseline from which to work from such as replacing a transmission in a vehicle that was purchased without a drive line! Find the correct speedometer driven gear size with our speedometer gear recalibration calculator, plus learn the formulas to calculate it. Use the Tire Height . w3ipis, smrkk, wz9, rvqk, frdh, dsyggix, ja, 911oz0, yw5, qfqboqn,