Quickly determine gear rollout, gear inches, and speed at any cadence. Adjust for tyre size, track length, and preferred speed units, then project lap and race times with a customisable start lap. A simple tool to compare setups and plan pacing for different velodromes.
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Input any two values to calculate the third. Adjust advanced settings like rolling resistance, system weight, drive train efficiency, and air density to refine accuracy and compare aerodynamic performance.
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This tool works out the minimum and maximum even number of chain links that will fit for a given gear and frame setup. It also shows gear inches for quick gearing context.
The minimum count is the forward axle position. The maximum count is the rearward axle position in the dropout. Results do not include chain slack.
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