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.

Features:

• Tensile Strength: 4,540 lbs
• Max CC Rating: 150cc Street, 150cc Off-road
• Max Horsepower: 25 HP
• Weight: 1.74 lbs
• Max Chain Width: 17.1mm
• Master Link Included: Clip type