Vortex 642AZOV4-48 Aluminum Rear Sprocket 48T 520 Pitch

The Vortex 642AZOV4-48 is a 48-tooth aluminum rear sprocket designed for high-performance motorcycle applications. Machined from lightweight 7075-T6 aluminum alloy, this sprocket delivers a significant weight savings over steel while maintaining the strength and durability demanded by street and track riders alike.

Key Features:

• 48 Teeth — Provides a specific gear ratio tuned for acceleration or top-speed optimization depending on front sprocket pairing
• 520 Pitch Chain Compatibility — Fits standard 520-series chains for broad application coverage
• 7075-T6 Aluminum Construction — Aerospace-grade aluminum alloy offers an excellent strength-to-weight ratio
• Hard Anodized Finish — Resists corrosion and wear for extended service life
• CNC Machined Precision — Tight tolerances ensure smooth, quiet chain engagement and even wear distribution
• Vortex OV4 Bolt Pattern — Engineered for direct fitment on compatible Vortex and OEM sprocket carriers

Vortex Racing is a trusted name in the powersports industry, renowned for producing competition-grade components used by professional racers and enthusiasts worldwide. The 642AZOV4-48 rear sprocket is an ideal upgrade for riders looking to reduce unsprung weight and fine-tune their drivetrain gearing for optimal performance on the street or circuit.