Vortex 527ZRV4-42 VTX Aluminum Rear Sprocket Pitch Sprockets - 42T 527

The Vortex 527ZRV4-42 is a high-performance VTX Series aluminum rear sprocket engineered for sport and performance motorcycles. Featuring a 42-tooth configuration with a 527 chain pitch, this sprocket delivers an optimal balance of acceleration and top-end performance for competitive and street riding applications.

Vortex sprockets are CNC-machined from high-grade 7075-T6 or 6061-T6 aluminum alloy, providing an excellent strength-to-weight ratio. The lightweight construction reduces unsprung and rotating mass, contributing to improved throttle response and handling dynamics compared to heavier steel alternatives.

Key Features:

• 42-Tooth rear sprocket for tunable gear ratio
• 527 chain pitch compatibility
• CNC-machined from high-strength aluminum alloy
• Hard anodized finish for enhanced wear resistance and corrosion protection
• Precision-cut tooth profile for smooth, consistent chain engagement
• Significant weight savings over OEM steel sprockets
• VTX Series design for performance street and track use

Manufactured in the USA, Vortex is a trusted name in the powersports industry, known for producing race-quality drivetrain components. The 527ZRV4-42 is a direct-fit replacement that installs with standard hand tools and requires no modifications.