Vortex 641AZR-51 Aluminum Rear Sprocket 51-Tooth Red Anodized

The Vortex 641AZR-51 is a high-performance aluminum rear sprocket featuring 51 teeth and a distinctive red anodized finish. Designed for serious riders and racers, this lightweight sprocket reduces rotating mass to improve acceleration and handling performance.

Key Features:

• 51-tooth aluminum construction for reduced weight compared to steel sprockets
• Red anodized finish provides corrosion resistance and aggressive styling
• CNC-machined from specially formulated aerospace-grade aluminum alloy
• Unique Saber tooth design increases sprocket longevity and chain engagement
• Lightening holes strategically placed to minimize rotating mass while maintaining strength
• 100% manufactured in the USA to precise specifications ensuring concentricity and durability

Vortex Racing sprockets are engineered to achieve maximum lightness and strength, making them the preferred choice for track and street riders seeking performance gains. The aluminum construction significantly reduces weight over OEM steel sprockets, allowing more power to reach the pavement while improving throttle response and handling characteristics.