Vortex 144AZKV4-45 VTX Aluminum Rear Sprocket 45T

The Vortex 144AZKV4-45 is a 45-tooth aluminum rear sprocket from Vortex's VTX series, engineered for motorcycle riders seeking a lightweight, high-performance replacement or upgrade over a stock steel sprocket. Precision-machined from high-grade aluminum alloy and hard anodized for durability, this sprocket delivers excellent power transfer while significantly reducing unsprung rotational weight.

Key Features:

• 45-Tooth Configuration – Optimized gearing for improved acceleration and throttle response
• Lightweight Aluminum Construction – Dramatically reduces unsprung weight compared to OEM steel sprockets
• Hard Anodized Finish – Provides corrosion resistance and extended wear life
• CNC Machined Precision – Ensures accurate tooth profile for smooth, consistent chain engagement
• VTX Series Design – Features Vortex's distinctive vented carrier design for additional weight savings
• Direct OEM Replacement – Bolt-on fitment with no modifications required

Vortex sprockets are a trusted choice among sport bike enthusiasts, track day riders, and racers. The 144AZKV4-45 is built to exacting tolerances and is compatible with standard O-ring, X-ring, and Z-ring drive chains. Whether you're tuning for the street or optimizing for the track, this sprocket offers a proven performance upgrade.