Go-kart calculators
Find your gearing sweet spot. Compare sprockets, jackshafts and theoretical speed.
Gear ratio
Calculate final drive ratio, compare sprocket combinations and estimate theoretical kart speed with optional jackshaft stages and a converter operating ratio.
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Kart speed
Turn engine RPM, sprocket teeth and tire diameter into theoretical MPH and KPH. Explore how jackshafts and converter operating ratios change wheel speed.
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Sprocket comparison
Compare your current kart sprockets with a proposed rear sprocket. See the percentage change in reduction and theoretical speed at the same RPM.
Open calculatorJackshaft gearing
Multiply two chain-drive reductions to calculate the overall ratio and theoretical speed of a kart with a jackshaft.
Open calculatorChain length
Estimate chain pitches and an even link count from kart sprocket sizes, chain pitch and shaft spacing. Check the resulting center-distance adjustment.
Open calculatorGearing chart
Explore an interactive front-and-rear sprocket chart with configurable engine speed and tire diameter. Compare reductions and theoretical speeds side by side.
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