Vortex 823-51 Silver 51-Tooth Aluminum Rear Sprocket

The Vortex 823-51 is a silver, 51-tooth aluminum rear sprocket engineered for high-performance motorcycle applications. Built to the exacting standards Vortex Racing is known for, this rear sprocket delivers reliable power transfer and long-lasting durability whether on the street or the track.

Key Features:

• 51-tooth silver aluminum construction — lightweight and precision-engineered for consistent performance
• Patented saber tooth groove design — unique tooth profile increases sprocket longevity and reduces chain wear
• 100% CNC machined — manufactured to the tightest tolerances for true concentricity and smooth chain engagement
• 7075 T6 billet aluminum — high-strength aerospace-grade alloy reduces rotating mass without sacrificing durability
• Lightening holes — strategically placed to further reduce unsprung weight
• Specially formulated alloy per Vortex specifications — optimized for the unique stresses of motorcycle drivetrain use

Vortex Racing has spent decades manufacturing race-proven motorcycle components for Motocross, Supercross, Road Racing, and Flat Track competition. Each component is made to the tightest tolerances with the best quality materials available, and is tested on-track with direct feedback from top professional race teams worldwide. The 823-51 rear sprocket is a direct-fit, drop-in upgrade over a worn OEM unit, offering improved performance and reduced drivetrain weight.