Vortex 642AZKV4-42 VTX Aluminum Rear Sprocket 42T

The Vortex 642AZKV4-42 is a 42-tooth VTX series aluminum rear sprocket designed for high-performance street and track riding. Precision-machined from lightweight 7075-T6 aircraft-grade aluminum, this sprocket delivers an exceptional strength-to-weight ratio over stock steel sprockets while contributing to reduced unsprung weight for improved handling and throttle response.

Key Features:

• 42 teeth for optimized final drive gearing
• Precision-machined from lightweight aluminum alloy for reduced rotating mass
• Hard anodized finish for enhanced durability and corrosion resistance
• CNC-machined lightening pockets reduce weight without sacrificing strength
• Designed for direct OEM-style fitment — no modifications required
• Compatible with standard chain pitch for the application
• Manufactured to tight tolerances for smooth, quiet power transfer

Vortex Racing is a trusted name in the powersports industry, supplying sprockets to professional racing teams and serious enthusiasts worldwide. The VTX series rear sprocket is an ideal upgrade for riders looking to fine-tune their gearing ratio for track days, canyon carving, or everyday performance riding.