Vortex 201EZR-51 Aluminum Rear Sprocket 51-Tooth

The Vortex 201EZR-51 is a high-performance 51-tooth aluminum rear sprocket from Vortex Racing's EZR series. Engineered for motorcycle enthusiasts seeking improved acceleration and throttle response, this sprocket is CNC-machined from lightweight 7075-T6 aluminum alloy for an excellent strength-to-weight ratio compared to stock steel sprockets.

Key Features:

• 51-tooth rear sprocket for increased low-end torque and acceleration
• CNC-machined from lightweight 7075-T6 aluminum alloy
• Hard anodized finish for improved wear resistance and corrosion protection
• Precision-machined teeth for smooth, quiet chain engagement
• EZR series design for direct OEM fitment — no modifications required
• Significantly lighter than OEM steel sprockets

The Vortex EZR series is a favorite among track-day riders and street performance enthusiasts who want a direct-fit upgrade over the factory sprocket. The hard-anodized aluminum construction delivers a durable, long-lasting surface while keeping unsprung weight to a minimum for improved handling dynamics.