Vortex 625ZR-51 Aluminum Rear Sprocket 51-Tooth

The Vortex 625ZR-51 is a 51-tooth aluminum rear sprocket engineered for motorcycle powersports applications. Designed and manufactured in the USA, Vortex rear sprockets are precision-crafted to deliver reliable power transfer, reduced rotating mass, and extended service life over stock components.

Key Features:

• 51-Tooth Rear Sprocket for optimized gear ratio tuning
• Lightweight aluminum construction reduces rotating mass for improved throttle response and acceleration
• 100% CNC machined to precise tolerances for perfect concentricity and fit
• Patented Vortex tooth design increases sprocket longevity and chain engagement
• Lightening holes machined throughout to minimize weight without sacrificing strength
• Specially formulated alloy produced to Vortex's proprietary specifications
• Made in the USA by a U.S.-based manufacturer with a motorsports racing heritage

Vortex rear sprockets are a proven choice for street riders and racers looking to fine-tune their gearing for improved low-end pull or top-speed performance. The 625ZR-51 is part of Vortex's 625-series rear sprocket lineup and is designed as a direct bolt-on replacement requiring no modifications.