Vortex 203-51 Silver 51-Tooth Aluminum Rear Sprocket

The Vortex 203-51 is a silver anodized, 51-tooth aluminum rear sprocket engineered for precision performance on the street and track. Manufactured entirely in the USA, this lightweight sprocket is built to Vortex's exacting standards using a specially formulated aluminum alloy, delivering an ideal balance of strength and weight savings over heavy OEM steel sprockets.

Key Features:

• Lightweight aluminum construction — standard racing-grade aluminum sprocket reduces unsprung rotational mass
• 100% CNC machined in the USA — precision manufacturing ensures concentricity and consistent performance
• Specially formulated alloy — proprietary aluminum blend engineered to Vortex specifications for strength and durability
• Silver anodized finish — corrosion-resistant anodizing protects the sprocket and maintains appearance over time
• Patented tooth design — Vortex's unique tooth geometry extends sprocket longevity and promotes smooth chain engagement
• 51-tooth rear sprocket — increases rear wheel torque and acceleration off corners

Vortex Racing has been manufacturing championship-proven motorcycle drivetrain components since 1995, with direct feedback from top professional race teams worldwide. The 203-51 rear sprocket is a direct upgrade for riders seeking reduced drivetrain weight and consistent, long-lasting performance.