Vortex 817ZK-40 Steel Rear Sprocket 40-Tooth

The Vortex 817ZK-40 is a 40-tooth steel rear sprocket engineered for performance motorcycle applications. Vortex Racing is a trusted name in the powersports industry, delivering precision-machined drivetrain components built to exceed OEM standards in both durability and performance.

Key Features:

• 40-Tooth Configuration – Provides optimized acceleration and drive ratio tuning for street or track use
• Steel Construction – Offers superior durability and longevity compared to aluminum alternatives, ideal for high-mileage and demanding riding conditions
• Precision Machined – CNC-machined to exact tolerances for smooth, consistent chain engagement and reduced drivetrain wear
• Direct OEM Replacement – Designed as a direct bolt-on replacement for compatible motorcycle applications
• Corrosion Resistant Finish – Protective coating helps resist rust and wear under varied riding conditions

The Vortex 817ZK-40 rear sprocket is an ideal upgrade or replacement for riders seeking reliable, high-quality drivetrain performance. Compatible chain pitch and carrier pattern are specific to the intended application — confirm fitment before installation.