Vortex 920AZB-38 VTX Aluminum Rear Sprocket Chain Sprockets - 38T 520

The Vortex 920AZB-38 is a high-performance aluminum rear sprocket designed for motorcycles running a 520 chain pitch. Featuring a 38-tooth count, this sprocket is engineered for riders seeking a lightweight, durable alternative to OEM steel sprockets without sacrificing reliability or performance.

Vortex sprockets are precision CNC-machined from high-strength 7075-T6 aluminum alloy and finished with a hard anodized coating for exceptional wear resistance and corrosion protection. The result is a sprocket that weighs significantly less than a stock steel unit, helping reduce unsprung and rotating mass for improved throttle response and handling dynamics.

Key Features:

• 38-tooth rear sprocket for 520 chain applications
• CNC-machined from lightweight 7075-T6 aluminum alloy
• Hard anodized finish for superior wear resistance and corrosion protection
• Precision tooth geometry for smooth, consistent chain engagement
• Significantly lighter than OEM steel sprockets — reduces unsprung weight
• Manufactured to tight tolerances for optimal chain alignment and longevity
• Direct bolt-on replacement design for easy installation

Vortex is a trusted name in the motorcycle aftermarket, supplying sprockets to professional racing teams and street riders alike. The AZB series represents their anodized aluminum rear sprocket line, balancing race-level performance with everyday durability. Whether you're looking to fine-tune your gearing ratio or simply upgrade to a lighter component, the Vortex 920AZB-38 is a proven choice.