Chain & Sprocket Kit Contents: 16T Front Sprocket - SPF34716C 42T Rear Sprocket - SPR439942C 120 Link RK Chain - RKP530GXWX120 RK Kit Box - SPRKITBOX RK chain and sprocket kits are the perfect drive maintenance kit for your bike, including a strong and durable 16T front and 42T rear steel sprocket, constructed from SCM420 chromoly steel alloy (front) & C45 high carbon steel with a electroplated Zinc finish (rear) paired with a high-quality XW-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's GXW series is designed to be the top of the line performance chain for Superbike, Road and Endurance Racing. The GXW is lightweight while maintaining a high tensile strength with maximum durability. RK's XW-Ring technology remarkably improves the chain life and lowers friction. Perfect for both race and road use providing as far as 20,000km of use while retaining its high-performance nature. Fits: Honda CBR1000RR Fireblade 2006-2016 CBR1000RR Fireblade ABS 2009-2016 2018