Change a bike’s power, weight, ratios, sprockets, chain and tire, or add a bike by hand.
This tool is part of Pro. Sign in or create a free account first, then start the trial.
One free trial per customer. Cancel anytime in My Account; Pro stays on until the end of the trial or the period you’ve paid for.
Free with Lite: gearing bench, garage, bike database, quick gearing, chain length, tire size, power to weight, dyno log and weather.