SPRINT RACE

Road Racing Use(Sprint)
Non-Sealed Chain (415H)
U-Ring Chain (415HRU, 520TRU)
UW-Ring Chain (VG520FWR, GB520UWR)

Professional Race and Track-Use Chain

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RK Racing Chain Series apply RK’s only technology of Ultra Thin Seal, U-Rings or UW-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 sprocket, keeping high transmission efficiency throughout the race.
RK Racing Chain Series are designed strictly for Racing ONLY, Do not apply them for Street Use.