Vortex 609ZR-50 Aluminum Rear Sprocket 50-Tooth

The Vortex 609ZR-50 is a 50-tooth aluminum rear sprocket engineered for high-performance motorcycle applications. Part of Vortex Racing's ZR series, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy to precise tolerances, delivering the consistent quality and fitment that Vortex Racing is known for.

Compared to stock steel sprockets, the lightweight aluminum construction significantly reduces rotating mass, contributing to improved throttle response and more nimble handling. The unique tooth profile is engineered to maximize chain engagement, promote even wear, and extend sprocket longevity.

Key Features:

• 100% CNC machined in the USA for precise tolerances and concentricity
• Lightweight aluminum construction reduces rotating mass for improved throttle response
• 50-tooth rear sprocket for gear ratio tuning and acceleration enhancement
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Unique tooth design promotes extended sprocket and chain life
• Anodized finish for corrosion resistance and a race-inspired appearance
• Direct bolt-on replacement — no modifications required

The 609ZR-50 is an ideal upgrade for riders looking to fine-tune their gear ratio or replace a worn rear sprocket with a premium, race-proven component. Always replace the chain and front sprocket at the same time for best results and longest drivetrain life.