Vortex 491ZB-52 Black 52-Tooth 520 Aluminum Rear Sprocket

The Vortex 491ZB-52 is a 52-tooth, 520-pitch aluminum rear sprocket finished in a PTFE black hardcoat. Engineered for motorcycle road racing, motocross, supercross, and high-performance street riding, this sprocket delivers a lightweight performance upgrade over heavy OEM steel units.

Key Features:

• 52-Tooth / 520 Pitch: Direct fitment for 520-chain applications; higher tooth count for increased low-end torque and acceleration
• 7075-T6 Billet Aluminum Construction: Aerospace-grade alloy reduces rotating mass for improved throttle response and power delivery
• PTFE Black Hardcoat Finish: Hard anodize bonded to the aluminum surface for enhanced durability and corrosion resistance with reduced friction
• 100% CNC Machined: Precision-machined to tight tolerances ensuring concentricity and smooth chain engagement
• Patented Saber Tooth Groove Design: Vortex's proprietary tooth profile increases sprocket longevity and reduces wear
• Race-Proven: Tested with top professional race teams worldwide in Motocross, Supercross, Road Racing, and Flat Track disciplines

Vortex Racing has been a U.S.-based manufacturer of top-quality motorcycle racing components for over 15 years. The 491ZB-52 rear sprocket is a direct bolt-on replacement or performance upgrade, ideal for riders seeking to fine-tune their gearing ratio for quicker acceleration or track-specific performance.