RK 420MRU U-Ring Chain

• Lightweight, low friction, sealed, U-Ring 420 pitch chain perfect for Honda Monkey and Honda Grom bikes
• Features RK’s proprietary Ultra Thin Seal, U-Rings, where the thickness of the seal is less than 50% of the most common O-ring seal; this allows RK to design a Sealed Chain with the weight of a Non-Sealed Chain
• MRU features 4 times longer chain life and will require fewer chain adjustments compared to non-sealed 420 chains
• Tensile Strength: 4,540 lbs
• Weight (per 100 links): 1.74 lbs
• Max CC Rating: 150cc Street, 150cc Off-road
• Max Horsepower: 25 HP
• Master Link Included: Clip