Vortex 317ZB-47 Black Steel Rear Sprocket 47-Tooth

The Vortex 317ZB-47 is a 47-tooth black steel rear sprocket engineered for motorcycle road racing, track days, and high-performance street riding. Built to the same exacting standards as all Vortex Racing drivetrain components, this sprocket delivers the durability and precision that professional race teams demand.

Key Features:

• 47-Tooth Rear Sprocket — allows fine-tuning of final drive gearing for improved acceleration and throttle response
• Carbon steel alloy construction — manufactured to Vortex's own material specifications for maximum strength and wear resistance
• Black electro-plated finish — satin black coating provides corrosion resistance and a clean, aggressive appearance
• Unique Vortex tooth profile — patented tooth design promotes smooth chain engagement and increases sprocket longevity
• Induction hardened — surface hardening reduces wear under high-load and high-RPM conditions
• Precision CNC machined — tight manufacturing tolerances ensure true concentricity for smooth, vibration-free power delivery

Vortex Racing is a U.S.-based manufacturer with over 15 years of experience producing top-quality motorcycle racing components for Motocross, Supercross, Road Racing, Flat Track, and Minibike applications. Every component is track-tested with direct feedback from professional race teams worldwide. The 317ZB-47 rear sprocket is a direct-fit replacement or performance upgrade, compatible with the corresponding Vortex front sprocket and chain for a complete drivetrain solution.