Vortex 317KV4-42 VTX Aluminum Rear Sprocket 42-Tooth

The Vortex 317KV4-42 is a lightweight, high-performance aluminum rear sprocket engineered for motorcycle road racing and performance street riding. Machined from a specially formulated aerospace-grade aluminum alloy to Vortex's precise specifications, this 42-tooth sprocket delivers an exceptional balance of reduced rotating mass and dependable power transfer.

Key Features:

• 42-Tooth Design: Optimized tooth count for performance-tuned acceleration and drive characteristics
• 7075-T6 Billet Aluminum Construction: Lightweight aerospace-grade alloy reduces rotating mass for improved throttle response and handling
• 100% CNC Manufactured in the USA: Machined to tight tolerances for precise concentricity and consistent chain engagement
• Vortex Patented Sprocket Design: Unique tooth profile engineered to increase sprocket longevity and reduce chain wear
• Anodized Finish: Corrosion-resistant anodizing protects the aluminum surface and maintains appearance
• Race-Proven Performance: Tested on the track with feedback from top professional race teams worldwide

Vortex Racing has been a trusted name in American-made motorcycle racing components for over 20 years, supplying sprockets and drivetrain parts to Motocross, Supercross, Road Racing, and Flat Track competitors. The 317KV4-42 rear sprocket is a direct-fit, performance upgrade over OEM that sheds unnecessary weight from the drivetrain without sacrificing strength or durability.