Chain & Sprocket Kit Contents:15T Front Sprocket - SPF214915C44T Rear Sprocket - SPR451344C120 Link RK Chain - RKP428KROX120RK Kit Box - SPRKITBOXRK Chain and sprocket kits are the perfect drive maintenance kit for your bike, including a strong and durable 16T front and 44T rear steel sprocket, constructed from SCM420 chromoly steel alloy (front) & C45 high carbon steel with an electroplated Zinc finish (rear) paired with a high-quality O-ring RK chain this kit has everything you need to replace your old warped and stretched chain and sprockets. The perfect alternative to expensive OEM replacements while designed to meet and exceed OEM specifications. Supplied in presentable packaging with a carry handle for convenient transportation.About the Chain:RK offers the best O-ring chains in the industry. Constructed from hi-carbon alloy steel for strength and durability, with a pre-stressed and pre-stretched process applied to maximize the life of the chain. All RK O-ring seals are made from an advanced Nitrile Butadiene composite for maximum performance and wear life, while delivering smooth power with minimal O-ring drag or loss of horsepower.