Diff Ratio Calculator. Tire diameter in inches radius x 2 mph calculate. For more information regarding transmissions gearboxes refer to engine gearbox information diff ratio.
Also calculated is the new gearing you would need in order to return back to your original gear ratio when going to a bigger or smaller tire. Scroll through the list of popular transmissions to find yours. Enter shift at rpm select gear to shift to and hit shift and trace to run up through the gears recording shift point rpm and km h.
Choose what to calculate then fill out the remaining inputs and click calculate.
Also calculated is the new gearing you would need in order to return back to your original gear ratio when going to a bigger or smaller tire. Free delivery australia wide ozzy tyres offers free shipping australia wide on all tyres wheels and wheel and tyre packages with 100 fitment guarantee. Installation of the correct ring and pinion gear ratio will help optimize performance fuel economy and overall driveability. Our differential gear ratio calculator can help you select the correct gear ratio to maximize the performance of your vehicle.