Description & Size Guide
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 chainThe 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
Fitment Summary
Compatible with 107 models (yearly).
- Barossa: Baja 170, Cheetah 170, Magna 170
- GasGas: ECF 2504T, EXF 350 Cross Country
- Husaberg: FE 2504T, FE 3504T, FE 3904T
- Husqvarna: FE 2504T, FE 3504T, FE 350S
- Kawasaki: KDX 250C1, KDX 250C2, KDX 250C3
- KTM: EXC 150 Enduro, EXC 250 Enduro, EXC 300 Enduro, EXC 350 Enduro, EXCF 250 Enduro, EXCF 250 six days, XCF 350, XCFW 250, XCFW 350 six days, XCW 250, XCW 250TPI
- TM Racing: SMR 660Fi, SMX 660Fi
Returns Policy
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