At DMG Motorsports, we present the RK EXCEL BL420MRU Drive Chain in black, a sealed 420 chain designed to deliver the lightweight feel of a non-sealed chain with the extended chain life and reduced adjustment needs of RK’s Ultra Thin Seal U-Ring design.

Features:

• 420 x 120 drive chain
• Black finish
• RK proprietary Ultra Thin Seal U-Rings
• Designed for 4 times longer chain life than comparable non-sealed 420 chains
• Requires less chain adjustments compared to non-sealed 420 chains
• Tensile strength: 4,540 lbs
• Maximum displacement rating: 150cc street and 150cc off-road
• Maximum horsepower: 25 HP
• Weight: 1.74 lbs
• Maximum chain width: 17.1mm
• Clip-type master link included