Vortex 438ZRV4-42 VTX Aluminum Rear Sprocket 42-Tooth

The Vortex 438ZRV4-42 is a 42-tooth VTX series aluminum rear sprocket designed as a direct-fit, high-performance replacement for sport and street motorcycles. Engineered for riders who demand lightweight precision without sacrificing durability, this sprocket is a popular upgrade over heavy OEM steel units.

Key Features:

• 42-Tooth count for optimized acceleration and throttle response tuning
• Lightweight 7075-T6 aluminum construction reduces unsprung rotational mass compared to steel sprockets
• Hard anodized finish for corrosion resistance and extended service life
• CNC machined to tight tolerances for precise chain engagement and smooth, quiet operation
• Direct OEM replacement fitment — no modifications required
• Compatible with 520 chain pitch (verify compatibility with your specific model)
• Part of Vortex's trusted VTX sprocket series, widely used in street, track, and sport riding applications

Vortex Racing is an industry-leading manufacturer of sprockets, clip-ons, and chassis components for motorcycles. The VTX aluminum rear sprocket line delivers a measurable weight savings and is available in a wide range of tooth counts to allow precise gearing customization for any riding style or application.