Vortex 824AZK-40 Aluminum Rear Sprocket 40-Tooth

The Vortex 824AZK-40 is a high-performance 40-tooth aluminum rear sprocket engineered for sport bike riders demanding precision, durability, and reduced unsprung weight. Manufactured from aerospace-grade 7075-T6 aluminum alloy, this sprocket delivers exceptional strength-to-weight savings over stock steel units, helping improve acceleration response and overall drivetrain efficiency.

Key Features:

• Material: Lightweight 7075-T6 aerospace-grade aluminum construction
• Tooth Count: 40 teeth for optimized gearing ratios
• Finish: Hard anodized surface treatment for corrosion resistance and extended wear life
• Precision CNC-machined for tight tolerances and consistent chain engagement
• Direct OEM replacement fitment — no modifications required
• Part of Vortex's trusted 824-series rear sprocket lineup

Vortex sprockets are a popular choice among track day enthusiasts and street riders looking to fine-tune their gearing. The 824AZK-40 sprocket is designed for a specific bolt pattern and chain pitch — always verify compatibility with your motorcycle's chain size, sprocket carrier, and application before installation.