Vortex 642AZRV4-42 VTX Aluminum Rear Sprocket 42T

The Vortex 642AZRV4-42 is a 42-tooth aluminum rear sprocket from Vortex's VTX series, engineered for performance street and track riders demanding lightweight precision drivetrain components. Machined from high-grade 7075-T6 aluminum billet, this sprocket delivers a significant weight savings over OEM steel units without sacrificing durability.

Key Features:

• 42 Teeth — direct replacement or gearing upgrade for compatible applications
• 7075-T6 Aluminum Construction — high-strength aerospace-grade alloy for maximum rigidity and reduced rotating mass
• Hard Anodized Finish — resists corrosion, wear, and chain abrasion for extended service life
• CNC Machined — precision tolerances ensure smooth, quiet chain engagement and consistent power transfer
• Lightening Pockets — strategically placed cutouts reduce overall weight while maintaining structural integrity
• Direct OEM Replacement Fit — bolt-on installation with no modifications required

Vortex Racing is a trusted name in the powersports industry, producing OEM-quality and race-proven drivetrain components used by professional and amateur riders worldwide. The VTX series rear sprockets are a popular upgrade for riders looking to fine-tune their final drive ratio for improved acceleration, top speed, or overall power delivery characteristics.