Vortex 527ZKV4-42 VTX Aluminum Rear Sprocket Pitch Sprockets - 520 42T

The Vortex 527ZKV4-42 VTX Aluminum Rear Sprocket is a high-performance replacement rear sprocket engineered for sport and racing motorcycles. Manufactured from lightweight 6061-T6 aircraft-grade aluminum, this sprocket delivers an excellent strength-to-weight ratio over stock steel sprockets, reducing unsprung weight for improved acceleration and handling response.

Key Features:

• 42-tooth rear sprocket configuration for optimized gear ratio tuning
• 520 pitch chain compatibility for direct OEM-style fitment
• Precision CNC-machined from 6061-T6 aluminum for consistent quality and tight tolerances
• Hard anodized finish for increased surface hardness and corrosion resistance
• Lightweight construction reduces unsprung rotational mass compared to stock steel sprockets
• Compatible with Vortex VTX sprocket carrier system
• Designed for street, track day, and competition use

The Vortex VTX sprocket line is a favorite among track day enthusiasts and club racers for its combination of precision machining, durability, and weight savings. The 42-tooth configuration allows riders to fine-tune their final drive ratio for specific track layouts or riding styles. Always replace the front sprocket and chain simultaneously for optimal drivetrain longevity.