Race-Driven Green (Non O Ring) Chain and Sprocket Kit. Fits the following models: 1989-2004 Yamaha YFM350 Warrior You will receive the following: 1 - 520-98 Green Chain (Tensile Strength Over 8200 lbs) 1 - 13 Tooth Steel Front Sprocket, 1 - 40 Tooth Steel Rear Sprocket, Race-Driven Chains have a tensile strength of over 8200 lbs.