Vortex 642AZLV4-42 Aluminum Rear Sprocket 42-Tooth Silver Anodized

The Vortex 642AZLV4-42 is a 42-tooth aluminum rear sprocket engineered for performance motorcycle applications. 100% CNC-manufactured in the USA, this sprocket is machined from a specially formulated aerospace-grade aluminum alloy developed to Vortex's exacting specifications, delivering an exceptional balance of low weight and high strength.

Key Features:

• 42-Tooth Rear Sprocket — precise gear ratio tuning for your drivetrain
• Aerospace-Grade Aluminum Construction — significantly lighter than OEM steel sprockets, reducing rotating mass for improved acceleration and response
• Silver Anodized Finish — hard anodize coating bonds to the aluminum surface to resist corrosion and extend service life
• 100% CNC Machined in the USA — manufactured to tight tolerances for consistent fit and performance
• Vortex Patented Tooth Design — unique profile engineered to maximize sprocket longevity and chain engagement
• Direct Replacement Fitment — engineered to replace the OEM rear sprocket with no modifications required

Vortex Racing rear sprockets are a trusted choice among road racers, track day enthusiasts, and performance street riders. The reduced rotating mass of this aluminum sprocket translates directly to sharper throttle response, improved deceleration, and more precise directional changes compared to heavier steel alternatives.