Vortex 255AZR-51 Aluminum Rear Sprocket 530 Pitch 51-Tooth Anodized Red

The Vortex 255AZR-51 is a 530-pitch, 51-tooth aluminum rear sprocket finished in a striking anodized red (AZR) color. Engineered by Vortex Racing — a U.S.-based leader in motorcycle racing components — this sprocket is built to the tightest tolerances for performance riders who demand precision and durability on the street or track.

Key Features:

• Chain Pitch: 530
• Tooth Count: 51 teeth
• Finish: Anodized Red (AZR)
• Material: 7075 T6 billet aluminum — lightweight and strong
• 100% CNC machined in the USA to tight tolerances
• Specially formulated alloy per Vortex specifications
• Patented unique tooth design increases sprocket longevity
• Lightening holes reduce rotating mass for improved throttle response
• Reduces rotating mass to help put more power to the pavement

Vortex Racing rear aluminum sprockets are the racer's choice, trusted by professional race teams worldwide across Road Racing, Motocross, Supercross, and Flat Track disciplines. The 255AZR-51 delivers the perfect combination of lightweight performance and race-proven durability.