RK EXCEL 420MRU 120L BK RK CHAIN BL420MRU-120

MRU 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 will feature 4 times longer chain life than comparable non-sealed 420 chains and will require less chain adjustments compared to non-sealed 420 chains. MRU is available in RK’s black scale finish with black inner and black outer side plates with gold pins and gold rollers.

• Tensile strength: 4,540 lbs
• Max CC rating: 150cc Street
• Max horsepower: 35 HP
• Weight: 1.74 lbs
• Max chain width: 17.1mm
• Master link included: clip type