RK Racing BL420MRU 420 Ultra Thin U-Ring Sealed Chain (120 Link) Chain Lube Every visible surface is finished

Every visible surface is finished in high-polish chrome for a standout presentation that’s perfect for concours builds

eye-catching finish

these studs feature a precision non-threaded shoulder that passes through the sprocket stack

Loud & Reliable Horn

✅ Full-wave charging systems

RK Racing BL420MRU 420 Ultra Thin U-Ring Sealed Chain (120 Link) Chain Lube Every visible surface is finishedMRU chains utilize RK's proprietary Ultra Thin Seal U Rings which allows the thickness of the seal to be less than 50% of the most common O ring seal MRU features 4 times longer chain life and will require less chain adjustments than comparable non sealed 420 chains Lightweight, low friction, sealed, U Ring 420 pitch chain Great option for up to 212CC 420 sprocket motors Typical chain lengths for CT70 +2" Swingarm CT70 Champion 94 Links Standard