Vortex 609ZK-45 Black Aluminum Rear Sprocket 45-Tooth

The Vortex 609ZK-45 is a 45-tooth rear aluminum sprocket featuring a black anodized finish with contrasting machined silver accents. Designed for riders who demand race-proven drivetrain components, this sprocket is built to the exacting standards that have made Vortex a trusted name in competitive motorcycle racing.

Key Features:

• 45-Tooth rear sprocket for optimized final drive gearing
• Lightweight aluminum construction reduces rotating mass for improved throttle response and acceleration
• 100% CNC machined in the USA to tight tolerances for precise fit and reliable performance
• Specially formulated alloy per Vortex specifications for maximum strength-to-weight ratio
• Black anodized finish with machined silver accent cuts for corrosion resistance and distinctive styling
• Vortex patented unique tooth design engineered to increase sprocket longevity and reduce chain wear

The 609ZK hub pattern is designed to fit specific aftermarket and OEM wheel configurations — confirm fitment using the Vortex fitment guide or by contacting Vortex Racing directly. This sprocket pairs with a matching front sprocket and drive chain for a complete drivetrain upgrade suitable for street, track day, and racing applications.