Vortex 422-51 520-Pitch 51-Tooth Steel Rear Sprocket

The Vortex 422-51 is a 51-tooth, 520-pitch steel rear sprocket engineered for high-performance motorcycle and powersports applications. Built by Vortex Racing — a U.S.-based manufacturer with over 15 years of motorsport heritage — this rear sprocket is designed to deliver reliable power transfer, extended service life, and precise chain engagement.

Key Features:

• 51-Tooth / 520-Pitch: Direct-replacement rear sprocket sized for 520-pitch drive chains
• Hardened Carbon Steel Construction: Hardened teeth resist wear and maintain shape under demanding riding and racing conditions
• Electro-Plated Satin Black Finish: Corrosion-resistant coating protects against rust, mud, and the elements
• Weight-Reducing Cutouts: Precision-machined lightening holes reduce rotating mass for improved throttle response and handling
• CNC Machined: Manufactured to tight tolerances for concentric, consistent chain engagement
• Race-Proven Design: Tested on the track with feedback from top professional race teams worldwide

The Vortex 422-51 steel rear sprocket is an ideal upgrade or replacement for riders seeking a durable, long-lasting alternative to aluminum sprockets — particularly for trail riding, off-road, motocross, and street applications where longevity and toughness are priorities. Sold individually; hardware not included.