Vortex 525-51 Aluminum Rear Sprocket 525 Pitch 51-Tooth Silver

The Vortex 525-51 is a 51-tooth, 525-pitch aluminum rear sprocket designed for street and road racing motorcycles. Engineered by Vortex Racing — a U.S.-based manufacturer with deep roots in Motocross, Supercross, and Road Racing — this sprocket delivers the precision, durability, and lightweight performance that serious riders demand.

Manufactured from a specially formulated aluminum alloy to Vortex's exact specifications, the 525-51 is 100% CNC machined in the USA for consistent concentricity and tight tolerances. The patented saber tooth groove design is unique to Vortex and contributes to extended sprocket longevity. Lightening holes throughout the sprocket body reduce rotating mass, improving throttle response and overall drivetrain efficiency.

Key Features:

• 525 Chain Pitch — designed for use with 525-pitch drive chains
• 51 Teeth — larger tooth count for increased low-end torque and acceleration
• Specially formulated aluminum alloy per Vortex specifications for strength and durability
• 100% CNC machined in the USA to precise tolerances
• Patented saber tooth groove design for increased sprocket longevity
• Lightening holes reduce rotating mass for improved performance
• Silver anodized finish for corrosion resistance and clean appearance

Vortex Racing components are tested on the track with direct feedback from top professional race teams worldwide, ensuring every sprocket meets the demands of both competitive racing and everyday street riding.