RK GB420MXU2 Motocross Race Chain

RK offers a sealed supercross, motocross and off-road racing gold chain called MXU.
RK’s GB420MXU2 features ultra-thin U-seals which is perfect for bikes with narrow clearance and delivers triple the life expectancy when compared to a non-sealed chain. RK’s U-Ring seals utilize double barrier grease protection plus anti-debris technology. RK’s U seals also feature small contact points to reduce cold start drag. U ring thickness is 50% thinner than O-ring with longer life time. RK MXU is the lightest sealed off-road chain on the market. Includes C-Clip master link.

• 42 Link chain is an upgraded replacement for Warp9 primary chain drive kit.
• 106 Link chain is a stock replacement for Light Bee X.
• 108 Link chain is for use with 52 Tooth rear sprocket.
• 110 Link chain is for use with 54 Tooth rear sprocket.
• 112 Link chain is for use with 56 Tooth rear sprocket.