Vortex 337ZK-51 CAT5 Aluminum Rear Sprocket 520 Pitch 51 Tooth

The Vortex 337ZK-51 CAT5 aluminum rear sprocket delivers race-proven performance for 520-pitch chain applications. Engineered as the racer's choice, this lightweight aluminum sprocket reduces rotating mass and helps transfer more power to the pavement. The 51-tooth configuration provides optimal gearing for various riding conditions and performance requirements.

Key Features:

• 100% CNC manufactured in the USA from specially formulated aluminum alloy
• 520 chain pitch compatibility
• 51 teeth for precise final drive ratio tuning
• CAT5 series design with zinc-plated finish for corrosion resistance
• Vortex patented sprocket design with unique tooth profile increases sprocket longevity
• Lightening holes reduce rotating mass for improved acceleration
• 337 bolt pattern for specific motorcycle applications

Vortex Racing is a U.S.-based manufacturer owned and operated by motorcycle racers and enthusiasts, focusing on absolute quality with components made to the tightest tolerances using the best materials in the industry. This sprocket is ideal for riders seeking a direct OEM replacement or looking to optimize their motorcycle's gearing for improved performance on the street or track.