TRU Chain

250 cc Amateur Race Chain

RK 520TRU apply RK's exclusive technology of Ultra Thin Seal, GB520TRU is using U-Rings, where the thickness of seal is less than 50% of the common seal, make it possible to design a Sealed Chain with the weight of a Non-Sealed Chain.

Application of Sealed Chain on Races can minimize the elongation of the chain which maintains the meshing precision between chain and sprockets, keeping high transmission efficiency throughout the race.

RK Racing Chains are developed Specialized for Track usage and Strictly not for Street Usage. They are designed to be strong and light to emphasize instant respond on acceleration, however the maximum chain life is approx 700[km] and less depending on usage condition.
Specialized for Track usage and Strictly not for Street Usage.