Vortex 920AZK-38 Aluminum Rear Sprocket 38T 520 Pitch

The Vortex 920AZK-38 is a 38-tooth aluminum rear sprocket designed for motorcycles running a 520 pitch chain. Engineered for performance riders who demand reduced rotating mass and reliable power transfer, this sprocket is a direct upgrade over heavy OEM steel units.

Key Features:

• 38-Tooth / 520 Pitch: Optimized tooth count for balanced acceleration and top-speed performance
• Aerospace-Grade Aluminum Construction: Lightweight alloy reduces unsprung and rotating weight compared to steel sprockets
• 100% CNC Machined: Manufactured in the USA to tight tolerances for precise chain engagement and concentricity
• Anodized Finish: Hard anodized surface treatment provides corrosion resistance and long-lasting appearance
• Vortex Patent-Pending Tooth Design: Unique tooth profile promotes smooth chain engagement and extended wear life
• Direct OEM Replacement or Upgrade: Compatible with 520-pitch chain conversions and factory 520 applications

Vortex rear sprockets are a trusted choice among road racers, track day enthusiasts, and performance street riders. The 920AZK-38 delivers the weight savings and precision fitment expected from one of the industry's leading sprocket manufacturers.