Vortex 525AZR-45 Aluminum Rear Sprocket 525 Pitch 45T

The Vortex 525AZR-45 is a high-performance aluminum rear sprocket designed for 525-pitch chain drive systems. Engineered by Vortex Racing, a U.S.-based manufacturer trusted by road racers and performance motorcycle enthusiasts worldwide, this sprocket delivers an optimal balance of lightweight construction and race-proven durability.

Machined from aerospace-grade aluminum and finished with a hardcoat anodizing process, the 525AZR-45 offers excellent wear resistance while significantly reducing unsprung and rotating mass compared to steel alternatives. The 45-tooth configuration allows riders to fine-tune their gear ratio for improved acceleration characteristics.

Key Features:

• 525 pitch compatibility for use with standard 525-series drive chains
• 45-tooth rear sprocket for optimized gear ratio tuning
• Lightweight aerospace-grade aluminum construction reduces rotating mass
• Hardcoat anodized finish for enhanced corrosion and wear resistance
• Precision CNC-machined to tight tolerances for smooth, reliable power transfer
• Direct OEM-style fitment on compatible applications
• Manufactured by Vortex Racing — trusted by professional race teams globally

The Vortex 525AZR-45 aluminum rear sprocket is an ideal upgrade or replacement for riders seeking improved drivetrain performance, reduced weight, and the quality craftsmanship that Vortex Racing is known for on the track and street.