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RK520MXZ4

RK520MXZ4 H/D CHAIN

MXZ4 is The Lightest Motocross Chain available on the market today. Made for the professional motocross racer, GB520MXZ4 is the next generation of motocross racing chains featuring RK’s new deeper gold sideplates. MXZ4 chains feature chromoly steel construction with seamless rollers and bushings, and oversized special alloy pins for added strength. Ideal for MX race application from 125-500cc.

RK520KZU

RK520KZU “U” RING CHAIN

RK520KZU is the ultimate gold race chain for 125, 250 and 500cc MX applications. By using advanced metallurgy RK has developed this chain to be the same weight as a lightweight heavy duty race chain but with increased longevity due to the insertion of the ultra thin “O” ring. The ultra ring also allows extremely efficient power transfer with greatly improved heat resistance and anti-abrasion properties making it the ideal choice for the serious MX racer.

RK520MXU

RK520MXU “UW” RING CHAIN

MXU is The Lightest Sealed-Ring Motocross Chain available on the market today. The MXU chain is 5% lighter than KZU and 8% lighter than competitor’s popular sealed off-road chain. Made for the professional motocross racer, GB520MXU is the next generation of motocross racing chains featuring RK’s new UW sealing rings. MXU chains are designed to provide the most consistent power delivery and increased chain life. All components are heat treated using RK’s exclusive HIT (Heat Induction Transfer) process. Ideal for MX race application from 125-500cc.

RK520EXW

RK520EXW “XW” RING CHAIN

GB520EXW is specifically designed for ATV/Quads and Off-Road vehicles and is the best high-speed, extreme heat, off-road performance chain available today. EXW chains were developed to survive the abrasive conditions that exist in hostile off-road environments. EXW features XW-ring seals composed of Nitrite Butadiene with three contact lips and two convex inner/outer stabilizers. This means three lubrication pools to protect against high-speed abrasion, and the loss of lubricant under these extreme conditions.

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