Vortex 317ZRV4-42 Aluminum Rear Sprocket 42-Tooth

The Vortex 317ZRV4-42 is a 42-tooth aluminum rear sprocket engineered for performance motorcycle applications. Manufactured in the USA by Vortex Racing, this sprocket is CNC-machined from a specially formulated aerospace-grade aluminum alloy to deliver an exceptional strength-to-weight ratio over stock steel sprockets.

Key Features:

• 42-Tooth rear sprocket for precise drivetrain gearing
• Lightweight aluminum construction reduces rotating mass for improved throttle response and acceleration
• 100% CNC-machined in the USA to tight tolerances for consistent fit and performance
• Specially formulated alloy per Vortex specifications for optimum strength and durability
• Vortex patented sprocket design with signature tooth geometry for smooth, reliable chain engagement
• Anodized finish for corrosion resistance and lasting good looks

Vortex Racing has been a trusted name in motorcycle drivetrain components for over two decades, supplying sprockets to professional race teams and serious street riders worldwide. The 317ZRV4-42 is a direct-fit replacement or performance upgrade designed to drop into your existing drivetrain setup.