Vortex 436ZKV4-42 VTX Aluminum Rear Sprocket 42T

The Vortex 436ZKV4-42 is a 42-tooth VTX Series aluminum rear sprocket designed as a high-performance replacement for sport and street motorcycle applications. Vortex is a leading manufacturer of precision-machined drivetrain components trusted by both competitive racers and performance street riders worldwide.

Key Features:

• 42-tooth tooth count for optimized acceleration and drive ratio tuning
• Lightweight aluminum construction — significantly reduces unsprung and rotating mass compared to steel sprockets
• VTX Series design — features Vortex's signature precision CNC machining for consistent tooth geometry and long wear life
• Hard anodized finish for corrosion resistance and extended durability
• Direct OEM-style fitment — bolt-on installation with no modifications required
• Compatible with standard 520 or application-specific chain pitch (verify chain pitch for your fitment)

Vortex VTX aluminum rear sprockets are an ideal upgrade for riders looking to shed weight from their drivetrain while maintaining reliable, precise power transfer. The anodized aluminum construction provides an excellent balance of strength and weight savings, making this sprocket a popular choice for both track days and performance street riding.