Vortex 642AZB-51 Aluminum Rear Sprocket 51 Tooth Blue

The Vortex 642AZB-51 is a precision-manufactured aluminum rear sprocket designed for high-performance motorcycles. This 51-tooth sprocket features a durable blue anodized finish that provides excellent corrosion resistance while reducing weight compared to steel alternatives.

Key Features:

• 51 tooth count for optimal gearing performance
• Manufactured from high-grade aluminum alloy to precise specifications
• Blue anodized finish for corrosion protection and distinctive appearance
• Strategic lightening holes reduce rotating mass and unsprung weight
• Engineered to ensure concentricity and durability under demanding conditions
• Compatible with 520 or 525 pitch chains depending on application

Vortex rear sprockets are manufactured to the tightest tolerances with premium materials, ensuring reliable performance for street and track use. The precision engineering guarantees proper fit and long service life when paired with quality chain components.