Vortex 838ZK-41 Aluminum Rear Sprocket 41-Tooth Black

The Vortex 838ZK-41 is a 41-tooth aluminum rear sprocket designed for motorcycle applications requiring a lightweight, performance-oriented drivetrain component. Manufactured by Vortex Racing — a leading American brand in motorcycle chain and sprocket systems — this sprocket is 100% CNC machined in the USA to precise tolerances for superior concentricity and consistent engagement.

Vortex's aluminum rear sprockets are engineered to reduce rotating mass compared to steel alternatives, helping transfer more power to the pavement. The black anodized finish provides corrosion resistance and a clean, aggressive appearance. The sprocket features Vortex's patented tooth profile designed to extend service life and reduce chain wear.

Key Features:

• 41-tooth rear sprocket for optimized gear ratio tuning
• Lightweight aluminum construction reduces rotating mass
• Black anodized finish resists corrosion and wear
• 100% CNC machined in the USA for precise tolerances
• Vortex patented tooth design for increased sprocket longevity
• Bolt-on replacement — model-specific fitment ensures proper fit

Changing to a 41-tooth rear sprocket can fine-tune your bike's overall gear ratio, allowing for adjustments in low-end torque response or top-end speed depending on your riding application. Always ensure the sprocket pitch matches your existing chain and front sprocket.