RK 420 MRU U-Ring Chain

Designed specifically with Honda Monkey and Grom applications in mind, the 420MRU U-Ring Chain utilizes RK’s proprietary Ultra Thin Seal, U-Rings, where the thickness of the seal is less than half that of other O-ring seals. This reduces weight and allows for up to four times longer chain life than comparable non-sealed chains. Requiring less frequent chain adjustments keeps you on the road and out of the garage!

• RK’s exclusive Ultra Thin Seal U-Ring design
• Seal thickness is less than 50% of the most common O-ring seal
• Lightweight for small displacement applications
• Includes clip type master link
• Tensile Strength: 4,540 lbs
• Max CC Rating: 150cc street / 150cc off-road
• Max Horsepower: 25
• Weight: 1.74 lbs per 100 links

Specifications

Part Numbers Specification