Supersprox 51 Tooth Rear Stealth Sprocket for Yamaha YZ490 1982-1988

Features:

• Tri-metal design features a lightweight aluminium core, hardened steel outer ring and tough stainless steel rivets.
• Locking construction: Steel outer ring locks inside the aluminium core which increases side impact strength.
• Thicker steel teeth to prevent hooking and last 3 times longer than aluminium.
• Larger tooth radius reduces chain friction and extends chain life.
• Steel outer ring features an anti-corrosion black finish, silver-zinc-nickel, black passivation and bright coat to prevent rusting.
• CNC machined to provide a perfect fit on the wheel.
• Full 6mm tooth width meeting DIN standards vs competitors.
• 7075 aluminium core is 70% lighter than steel which lowers the rotating mass.
• Forged stainless steel rivets provide a secure connection.
• Finished with a durable anodizing in colours to suit application.
• The go-to sprocket for many factory race teams.

Features:

• Tri-metal design features a lightweight aluminium core, hardened steel outer ring and tough stainless steel rivets.
• Locking construction: Steel outer ring locks inside the aluminium core which increases side impact strength.
• Thicker steel teeth to prevent hooking and last 3 times longer than aluminium.
• Larger tooth radius reduces chain friction and extends chain life.
• Steel outer ring features an anti-corrosion black finish, silver-zinc-nickel, black passivation and bright coat to prevent rusting.
• CNC machined to provide a perfect fit on the wheel.
• Full 6mm tooth width meeting DIN standards vs competitors.
• 7075 aluminium core is 70% lighter than steel which lowers the rotating mass.
• Forged stainless steel rivets provide a secure connection.
• Finished with a durable anodizing in colours to suit application.
• The go-to sprocket for many factory race teams.

Bike Fitment:

• fits Yamaha YZ490 1982
• fits Yamaha YZ490 1983
• fits Yamaha YZ490 1984
• fits Yamaha YZ490 1985
• fits Yamaha YZ490 1986
• fits Yamaha YZ490 1987
• fits Yamaha YZ490 1988