MXU Sealed Motocross Chain

RK MXU SEALED MOTOCROSS RACE CHAIN

When conditions turn muddy, sandy, wet, or if riders just want a long lasting racing chain, RK offers a sealed supercross, motocross and off-road racing chain called MXU.

RK’s 520MXU features ultra-thin UW-seals which is perfect for bikes with narrow clearance and delivers triple the life expectancy when compared to a non-sealed chain. RK’s 420/428MXU will come with RK’s U-Seal for increased durability without increasing drag. RK’s UW-Ring seals utilize triple barrier grease protection plus anti-debris technology. Anti-debris protection is vitally important to maximize chain wear life by eliminating debris friction between internal components. RK’s U & UW seals also feature small contact points to reduce cold start drag. U & UW ring thickness is 50% thinner than O-ring with longer life time. MXU is available in 420, 428 and 520 pitch.

GB520MXU Sealed Motocross Chain weighs a mere 3.04 lbs per 100 links making MXU the lightest sealed off-road chain on the market.