RK โซ่ High Speed&Perfomance XW-ring-B/G BL525KRX 120L CH-RK-15252OX CB/CBR650

Ultra-light Seal chain for Off-road! No friction compares to O-ring & X-ring, better durability compares to non-seal chain. Weight? Almost same as non-seal chain! RK sole technology of Ultra-thin rings! RK offers the best O-Ring chains in the industry. All RK O-Ring chains are manufactured with hi-carbon alloy steel for strength and durability. Applying Nitrite Butadiene O-Rings to seal in lubrication and deliver smooth power with minimal ring drag or loss of horsepower.