Primary Drive Alloy Kit & O-Ring Chain Blue Rear Sprocket For YAMAHA YZ125X 2020-2022

Sprocket kits include the following Stock size Primary Drive steel front sprocket Stock size Primary Drive Alloy rear sprocket Stock size Primary Drive O-Ring chain Front sprockets are manufactured to O.E.M., specs using high grade hardened steel. Rear Aluminum Sprocket made from 7075 T-6 heat treated Aluminum. Come with self-cleaning grooves. All match original equipment exactly for perfect fit and size. The ORM O-Ring chain provides outstanding durability and long wear characteristics making it perfect for motorcycles and ATV’s. Features solid bushings with high quality pin material, O-rings and lubricant. The unique design and profile of the chain ensures durability, and decreases wear on chain guides and swing arm rub plates. Average tensile strength 7,850 lbs. Clip style Master-Link included.