Koso Torque Spring | 1000 rpm

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Koso Torque Spring | 1000 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 (R= Range U=Unit) 1000 RPM 4-Stroke 50cc also fits: Vino 50, 90 Jog 50 RS/RSZ 100 Show more