Vortex 317-40 Aluminum Rear Sprocket 40-Tooth

The Vortex 317-40 is a 40-tooth aluminum rear sprocket engineered for performance motorcycle applications. Precision-machined to exacting tolerances, this sprocket delivers reliable power transfer and consistent drive engagement for both street and track use.

Key Features:

• 40-tooth rear sprocket for optimized gear ratio tuning
• Manufactured from aerospace-grade aluminum for reduced rotational mass and improved throttle response
• Precision CNC-machined to ensure concentricity and accurate tooth geometry
• Hard anodized finish for corrosion resistance and extended service life
• Designed as a direct OEM-replacement or performance upgrade rear sprocket
• Compatible with standard chain pitch — confirm fitment by series number before ordering

Vortex Racing is a trusted name in motorcycle drivetrain components, supplying sprockets to professional racers and everyday riders alike. The 317-40 is part of Vortex's broad rear sprocket lineup, offering riders the ability to fine-tune acceleration and top-speed characteristics to suit their riding style.