Vortex 245AZK-41 CAT5 Rear Aluminum Sprocket 520 Chain 41-Tooth Black Anodized

The Vortex 245AZK-41 CAT5 Rear Aluminum Sprocket is a race-proven, lightweight rear sprocket engineered for motorcycle road racing and performance street riding. Built to the exacting standards Vortex Racing is known for, this sprocket delivers a measurable reduction in rotating mass for improved throttle response, acceleration, and drivetrain efficiency.

Key Features:

• Lightweight CAT5 aluminum construction — reduces rotating mass for faster acceleration and crisper throttle response
• 100% CNC manufactured in the U.S.A. — machined to the tightest tolerances for consistent fit and performance
• Specially formulated alloy per Vortex specifications — engineered for maximum strength-to-weight ratio
• Saber tooth groove design — unique tooth profile increases sprocket longevity and chain engagement
• Vortex patented sprocket design — unlike any other sprocket on the market
• Black anodized finish — with contrasting silver machine cuts for a premium look
• 41-tooth rear sprocket — optimized gearing for a balance of acceleration and top-end speed

Vortex Racing has been a trusted name in U.S.-based motorcycle racing components for over 15 years, supplying top professional race teams worldwide across Motocross, Supercross, Road Racing, and Flat Track disciplines. The CAT5 series represents their commitment to precision manufacturing and on-track proven performance.