Koso Torque Spring | 2000 rpm

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Koso Torque Spring | 2000 rpm by KOSO.High quality compression spring with a special hi-efficiency coating to resist heat build up and keep spring tension consistent from the start of a moto all the way to the finish line. Springs with just the standard coating will build up heat and the spring tension will change causing erratic shift patterns. Specifications 2000 RPM 4-Stroke 50cc Show more