RK Excel GB428MXU-116 MXU Gold Drive Chain, 428 Pitch, 116 Links

RK’s MXU 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 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 UW seals also feature small contact points to reduce cold start drag. UW ring thickness is 50% thinner than O-ring with longer life time. MXU is currently available in 520 pitch

The RK Excel GB428MXU-116 MXU Gold Drive Chain is designed for lightweight off-road motorcycles requiring dependable power transfer and extended service life. This 428-pitch chain uses RK’s ultra-thin UW-ring seals, making it well suited for bikes with narrow chain clearance. The sealed construction helps deliver up to three times the life expectancy of a comparable non-sealed chain while maintaining smooth operation.

RK’s UW-Ring sealing system combines triple-barrier grease protection with anti-debris technology to help prevent abrasive contamination from reaching the chain’s internal components. Smaller seal contact points reduce cold-start drag, while the UW ring is 50% thinner than a conventional O-ring for improved clearance. The gold finish provides a distinctive appearance for performance-oriented applications.

• Fitment: Designed for 428-pitch off-road motorcycle applications up to 150cc and 35 horsepower
• Chain Size: 428 pitch with 116 links
• Seal Design: Ultra-thin UW-Ring seals with triple-barrier grease protection
• Performance: Anti-debris technology helps reduce internal component wear
• Strength: Tensile strength rated at 6,070 pounds
• Master Link: Clip-style master link included
• Brand: RK Excel
• Manufacturer Part Number: GB428MXU-116
• Vendor Part Number: GB428MXU-116

For proper fitment, verify that your motorcycle uses a 428-pitch chain and requires 116 links before installation. The RK Excel MXU chain is intended for compatible off-road applications and should be installed with correct sprocket alignment and manufacturer-recommended chain tension.

Features:

• Fitment: Designed for 428-pitch off-road motorcycles up to 150cc and 35 horsepower
• Chain Size: 428 pitch with 116 links
• Seal Design: Ultra-thin UW-Ring seals provide improved clearance for narrow chain areas
• Protection: Triple-barrier grease sealing and anti-debris technology help extend chain life
• Drag Reduction: Small seal contact points help reduce cold-start drag
• Construction: UW rings are 50% thinner than conventional O-rings
• Tensile Strength: Rated at 6,070 pounds
• Master Link: Clip-style master link included
• Finish: Gold
• Brand: RK Excel
• Manufacturer Part Number: GB428MXU-116
• Vendor Part Number: GB428MXU-116