Vortex 839AZOV4-45 VTX Aluminum Rear Sprocket Orange Anodized Sprockets - 45T

The Vortex 839AZOV4-45 is a 45-tooth aluminum rear sprocket from Vortex's VTX series, engineered for performance-oriented riders seeking a lightweight alternative to stock steel sprockets. Machined from high-strength 7075 aluminum alloy and finished with a striking orange anodized coating, this sprocket delivers an optimal balance of durability, weight savings, and precision.

Key Features:

• 45 Teeth – Provides increased rear wheel torque and improved acceleration compared to stock gearing
• 7075 Aluminum Construction – Premium aerospace-grade alloy for superior strength-to-weight ratio
• Orange Hard Anodized Finish – Corrosion-resistant coating that extends service life and adds visual appeal
• CNC Machined – Precision manufactured to exact tolerances for smooth, consistent chain engagement
• Lightened Design – Relief cuts and optimized geometry reduce unsprung rotational mass
• OEM-Style Bolt Pattern – Direct bolt-on fitment with no modifications required

Vortex sprockets are a trusted choice among track day enthusiasts, club racers, and sport riders who demand reliable performance components. The 839AZOV4-45 pairs perfectly with Vortex front sprockets and aftermarket chains for a complete drivetrain upgrade.