Vortex 526AZK-47 Series Aluminum Rear Sprocket Sprockets - CAT5 47-Tooth

The Vortex 526AZK-47 is a 47-tooth, 520-pitch rear sprocket from Vortex's CAT5 series, engineered as a lightweight, high-performance upgrade over heavy OEM steel sprockets. Precision-crafted from aerospace-grade aluminum, this sprocket delivers measurable gains in acceleration response and drivetrain efficiency.

Premium 7075-T6 Aluminum Construction

• Manufactured from 7075-T6 aluminum — the highest-grade alloy available for sprocket applications, balancing low weight with exceptional durability
• Significant weight reduction over stock steel sprockets; savings on rotating drivetrain mass are amplified compared to static weight reduction
• Less rotating mass translates directly to improved throttle response and quicker acceleration

CNC Machined to Exacting Tolerances

• Vortex's proprietary manufacturing process produces a perfectly concentric sprocket on every unit, eliminating runout that robs power and accelerates wear
• Optimized tooth profile reduces chain drag and friction, improving both acceleration and engine braking feel
• Precise concentricity extends the service life of both the chain and the sprocket itself

Vortex Patented CAT5 Aesthetic Design

• Features Vortex's patented CAT5 design with color anodizing applied exclusively to the body — sweeps, mud grooves, and teeth retain a natural silver finish for a distinctive two-tone appearance
• Mud grooves are designed to expel debris and keep the sprocket and chain interface clean during aggressive riding
• Available in single-tooth increments for precise gearing customization

The Vortex 526AZK-47 is a direct bolt-on upgrade for riders seeking a performance edge without compromising reliability. Note: Product images are representative and may vary slightly by application.