ChainLab: Bike Gear Simulator

Turn a virtual crank and shift gears to see how a bicycle drivetrain moves. Ride a looping virtual course and watch the auto shifter click through the cassette with drivetrain sounds and haptics, or take over and keep your cadence in the green. Compare two gear setups at the same cadence or speed on a virtual hill. See estimated speed, cadence and steady-state power. Save one setup for free; optional one-time Pro purchase unlocks unlimited saved setups. Simulation outputs are estimates, not a physical measurement or compatibility check. Terms: https://ootssu.com/chainlab/terms.html Privacy: https://ootssu.com/chainlab/privacy.html