Vortex 839AZUV4-42 VTX Aluminum Rear Sprocket 42-Tooth

The Vortex 839AZUV4-42 is a 42-tooth aluminum rear sprocket from Vortex's VTX series, engineered for riders who demand lightweight performance without sacrificing durability. Machined from high-grade aluminum alloy, this sprocket delivers a significant weight reduction over steel alternatives, making it a popular upgrade for street, track, and powersports applications.

Key Features:

• 42-Tooth Rear Sprocket — provides precise gearing for optimized acceleration and top-end performance
• Lightweight Aluminum Construction — reduces unsprung and rotating mass for improved handling and throttle response
• VTX Series Design — Vortex's proven sprocket line trusted by racers and enthusiasts worldwide
• Precision CNC Machined — tight tolerances ensure smooth chain engagement and extended wear life
• Hard Anodized Finish — resists corrosion and wear for lasting appearance and performance
• Direct OEM-Style Fitment — designed as a direct replacement for compatible applications

The Vortex 839AZUV4-42 rear sprocket is an ideal choice for riders looking to fine-tune their gearing setup. Whether optimizing for track day performance or everyday street riding, this aluminum sprocket offers the quality and reliability that Vortex is renowned for.