• Gearing Formula

      Basic informaton for gearing

      Calculating tire diameter: Circumference divided by 3.1416 (aka PI)

      *Note: Tire diameter is a straight line measurement from any point on the tire's circumference, through the center, to the opposite point on the tire's circumference. Radius = diameter divided by 2


      Torque = Brake HP x 5,252
      RPM

      Miles Per Hour= RPM x Tire Diameter(in inches)
      Gear Ratio(final) x 336

      RPM= MPH x Gear Ratio(final) x 336
      Tire Diameter