Vortex 525A-55 Aluminum Rear Sprocket 525 Pitch 55 Tooth

The Vortex 525A-55 is a 55-tooth aluminum rear sprocket designed for 525-pitch drive chain applications. Engineered by Vortex Racing — a U.S.-based manufacturer with decades of experience supplying top-tier components to professional race teams worldwide — this sprocket delivers a winning combination of lightweight performance and durable construction for street and track use.

Key Features:

• 525 Pitch Compatibility — Designed to work with all standard 525-pitch motorcycle drive chains
• 55-Tooth Configuration — Provides increased rear gearing ratio for improved low-end acceleration and throttle response
• Lightweight Aluminum Construction — Significantly lighter than steel sprockets, reducing unsprung rotational mass for improved handling
• Hardcoat Anodized Finish — Hard anodizing improves surface hardness and corrosion resistance for extended service life
• Precision Laser-Cut Teeth — Tight manufacturing tolerances ensure smooth, precise chain engagement and reduced wear
• Drilled Lightening Holes — Additional weight reduction without sacrificing structural integrity
• Race-Proven Design — Developed and validated by Vortex with direct feedback from professional racing teams

The 525A-55 is an ideal upgrade or direct replacement rear sprocket for riders looking to optimize acceleration and mid-range power delivery. Compatible with standard 525-pitch chains, it is built to the same exacting standards Vortex supplies to professional road racing, superbike, and supercross competitors.