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The RK 520MXU is the lightest sealed-ring enduro/motocross chain available in market today, 13.8g/link, only 0.1g/link heavier than RK 520MXZ4 non sealed chain
The MXU chain series is the next generation of enduro/motocross racing chains featuring the RK patented technology of Ultra Thin UW-Rings, which make it possible to design a Sealed Chain with the weight of a Non-Sealed Chain.
UW Seal Rings stop debris and dirt entering the chain rollers which ensures efficient horsepower transmission from the engine to the rear wheel throughout the chain life
For Enduro & Motocross
RK UW Seal Ring
Lightest off-road seal chain
Use by Graham Jarvis
Use by Top MXGP teams
The RK 520MXU is the lightest sealed-ring enduro/motocross chain available in market today, 13.8g/link, only 0.1g/link heavier than RK 520MXZ4 non sealed chain
The MXU chain series is the next generation of enduro/motocross racing chains featuring the RK patented technology of Ultra Thin UW-Rings, which make it possible to design a Sealed Chain with the weight of a Non-Sealed Chain.
UW Seal Rings stop debris and dirt entering the chain rollers which ensures efficient horsepower transmission from the engine to the rear wheel throughout the chain life
For Enduro & Motocross
RK UW Seal Ring
Lightest off-road seal chain
Use by Graham Jarvis
Use by Top MXGP teams