Vortex 839AV4-38 Aluminum Rear Sprocket 38-Tooth Anodized Violet

The Vortex 839AV4-38 is a 38-tooth aluminum rear sprocket from Vortex Racing's VTX series, CNC-machined in the USA to precise tolerances for superior concentricity and long-term durability. Finished in a striking anodized violet (AV4) coating applied before cutting, it delivers the iconic two-tone machined look Vortex is known for while providing corrosion resistance.

Key Features:

• 100% CNC manufactured in the USA for tight tolerances and consistent quality
• Specially formulated aluminum alloy per Vortex specifications for optimal strength-to-weight ratio
• Anodized violet finish applied pre-cut for a two-tone machined appearance and corrosion protection
• Unique patented tooth design increases sprocket longevity and reduces chain wear
• Lightweight construction reduces rotating mass for improved acceleration, deceleration, and directional changes
• 38 teeth — suitable for stock replacement or gearing ratio tuning

Vortex Racing sprockets are trusted by professional race teams worldwide and are engineered to perform on both the street and track. The 839AV4-38 is a direct bolt-on replacement that pairs with the appropriate chain pitch for your application.