Vortex 825-51 Silver 51-Tooth 530-Pitch Aluminum Rear Sprocket

The Vortex 825-51 is a silver anodized, 51-tooth rear sprocket designed for the 825 bolt pattern (compatible with Marvic and Galespeed wheels) using a 530 chain pitch. CNC-machined from a specially formulated aluminum alloy to Vortex's exacting standards, it delivers the ideal balance of lightweight performance and long-term durability for both track and street use.

Key Features:

• 51-tooth, 530-pitch rear sprocket for the 825 bolt pattern (Marvic / Galespeed)
• 100% CNC manufactured in the USA from specially formulated aluminum alloy
• Silver anodized finish for corrosion resistance and a clean appearance
• Vortex patented tooth design engineered to extend sprocket longevity
• Lightweight construction reduces rotating mass for improved throttle response and acceleration
• Manufactured to the tightest tolerances, tested with feedback from professional race teams worldwide

Vortex Racing is a U.S.-based manufacturer with over 15 years of experience producing top-quality motorcycle racing components for road racing, motocross, supercross, flat track, and more. The 825-51 sprocket is a direct replacement or gearing upgrade option for riders seeking reliable, race-proven drivetrain components.