Vortex 255A-51 Aluminum Rear Sprocket 51-Tooth

The Vortex 255A-51 is a 51-tooth aluminum rear sprocket from Vortex Racing's highly regarded 255-series lineup. Engineered for performance-focused riders, this sprocket delivers the precision, durability, and weight savings demanded by both track and street enthusiasts.

Key Features:

• 51-Tooth Rear Sprocket — Provides increased low-end torque and quicker acceleration compared to stock gearing
• Lightweight Aluminum Construction — Manufactured from a specially formulated alloy to reduce rotating mass and improve throttle response
• 100% CNC Machined — Precision-machined in the USA to the tightest tolerances for superior concentricity and fitment
• Patented Tooth Design — Vortex's unique saber tooth groove profile increases sprocket longevity and promotes smooth chain engagement
• Lightening Holes — Strategically placed to further reduce unsprung weight without sacrificing structural integrity
• Vortex 255-Series Fitment — Designed to replace OEM sprockets on compatible motorcycle platforms

Vortex Racing has built its reputation manufacturing top-quality motorcycle drivetrain components for Motocross, Supercross, Road Racing, and Flat Track Racing. Each sprocket is made to exacting standards and validated through real-world racing feedback from professional teams worldwide. The 255A-51 rear sprocket is an ideal upgrade for riders seeking improved acceleration performance or a direct OEM-quality replacement.