Vortex 775BZK-40 Black 40-Tooth 525 Aluminum Rear Sprocket

The Vortex 775BZK-40 is a 40-tooth, 525-pitch black anodized aluminum rear sprocket designed for performance street and track riders who demand precision-engineered drivetrain components. Manufactured 100% in the USA, this sprocket is built to reduce rotating mass and deliver improved throttle response compared to heavier OEM steel sprockets.

Key Features:

• Chain Pitch: 525
• Tooth Count: 40T
• Finish: Black anodized for corrosion resistance and a clean, aggressive appearance
• Material: 7075 T6 billet aluminum — aerospace-grade for maximum strength-to-weight ratio
• Construction: 100% CNC machined to tight tolerances for a perfectly concentric fit and smooth power delivery
• Tooth Design: Vortex patented saber-tooth profile increases sprocket longevity and reduces chain wear
• USA Made: Manufactured domestically to Vortex Racing's strict quality specifications

Vortex Racing is a U.S.-based manufacturer with decades of experience producing top-quality motorcycle racing components for Road Racing, Motocross, Supercross, and Flat Track applications. Each sprocket is tested with feedback from professional race teams worldwide, ensuring real-world performance at every level of riding.