Vortex 775AV4-42 VTX Aluminum Rear Sprocket 42T

The Vortex 775AV4-42 is a high-performance VTX series aluminum rear sprocket designed as a direct OEM replacement or upgrade for sport and street motorcycles. Machined from lightweight 7075-T6 or 6061-T6 aircraft-grade aluminum, this sprocket delivers an excellent strength-to-weight ratio while reducing unsprung rotational mass for improved throttle response and handling.

Key Features:

• 42-tooth rear sprocket configuration
• Precision CNC-machined from high-grade aluminum alloy
• Hard anodized finish for corrosion resistance and long-lasting durability
• Lightweight construction reduces unsprung weight versus stock steel sprockets
• Precisely cut teeth for smooth, consistent chain engagement
• Direct bolt-on fitment — no modification required
• Compatible with standard motorcycle drive chains

Vortex Racing is a trusted name in the powersports industry, known for producing competition-grade drivetrain components used by professional racers and serious enthusiasts alike. The VTX aluminum rear sprocket is an ideal upgrade for riders looking to shave weight and improve drivetrain performance without sacrificing reliability.