Ultra Thin Seal Chain for Enduro
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.
MXU series is the next generation of enduro/motocross racing chains featuring RK’s only technology of Ultra Thin Seal, U-Rings or UW-Rings, make possible to design a Sealed Chain with
the weight of a Non-Sealed Chain. Seal Rings prevent debris to enter the chain
which ensures the efficient horsepower transmission from the engine to the
rear wheel throughout the chain life.
420MXU2 U-RING CHAIN
- Tensile Strength: 22.2kN
- Application: 50cc / 150cc
- Master Link Included: Clip type
- Weight: 0.79Kg/100L
428MXU U-RING CHAIN
- Tensile Strength: 27.0kN
- Application: 50cc / 150cc
- Master Link Included: Clip type
- Weight: 1.00Kg/100L
520MXU UW-RING CHAIN
- Tensile Strength: 35.6kN
- Application: 125cc / 500cc
- Master Link Included: Clip/Rivet type
- Weight: 1.38Kg/100L
Available in 420/428/520
Main point
- For Enduro & Motocross
- RK U & UW Seal Ring
- Lightest off-road seal chain
- Use by Graham Jarvis
- Use by Top MXGP teams