Rear Sprocket Aluminum 40t 520 Blk Yam

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  • Regular price $69.95
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  • 7075-T651 Aerospace aluminum. The strongest commercial grade aluminum chosen for maximum tooth strength to offer extended sprocket and chain life.

  • 100% surface anodized finish. Critical to prevent oxidization caused by untreated aluminum. Helps prevent the sprocket becoming loose on the wheel.

  • CNC machined to provide perfect fitting to the bike hub.

  • CAD design allows the maximum removal of weight, while keeping core strength.

  • Grooved to prevent dirt build up under chain and prolong chain life.

  • Factory tooth design, developed with factory teams. The wider and stronger tooth provides up to 20% longer sprocket life.

  • Larger tooth radius reduces chain friction and extends chain life

1998 Yamaha WR400F
1998 Yamaha YZ400F