Vortex 775ZR-40 520 Aluminum Rear Sprocket 40-Tooth Silver

The Vortex 775ZR-40 is a 40-tooth, 520-pitch aluminum rear sprocket designed for performance motorcycle applications. Engineered and manufactured in the USA, this sprocket is built to racing standards and delivers a measurable reduction in drivetrain rotating mass compared to OEM steel sprockets.

Key Features:

• 7075 T6 billet aluminum construction — aerospace-grade alloy formulated to Vortex's proprietary specifications for strength and weight savings
• 100% CNC machined in the USA to tight tolerances for a perfectly concentric fit and smooth power delivery
• Silver anodized finish — the ZR designation indicates a bright silver anodize that resists corrosion and oxidation
• Vortex patented saber tooth groove design — unique tooth profile increases sprocket longevity and reduces chain wear
• 520 chain pitch — compatible with standard 520 drive chains
• 40 teeth — direct fitment tooth count for supported applications

Vortex Racing has been manufacturing top-quality motorcycle racing components for road racing, motocross, supercross, flat track, and minibike disciplines for over 15 years. Each component is tested on-track with feedback from professional race teams worldwide, ensuring real-world durability and performance.