Vortex 840ZGV4-45 VTX Aluminum Rear Sprocket 45T

The Vortex 840ZGV4-45 is a 45-tooth aluminum rear sprocket from Vortex's VTX series, engineered for riders seeking a lightweight, high-performance replacement or gearing upgrade. Manufactured from aircraft-grade 7075 aluminum alloy and hard anodized for enhanced durability, this sprocket delivers a significant weight savings over stock steel sprockets without sacrificing strength or longevity.

Vortex sprockets are precision CNC-machined to exacting tolerances, ensuring smooth chain engagement, precise fitment, and consistent power transfer from the engine to the rear wheel. The hard-anodized finish resists corrosion and wear, extending the service life of both the sprocket and the drive chain.

Key Features:

• 45-tooth rear sprocket for optimized acceleration and gearing
• CNC-machined from 7075 aircraft-grade aluminum for maximum strength-to-weight ratio
• Hard-anodized finish for corrosion and wear resistance
• Precision-machined teeth for smooth, consistent chain engagement
• Lightweight design reduces unsprung rotational mass
• Direct OEM replacement — no modifications required
• Compatible with standard 520-pitch drive chain (verify chain pitch for your application)

Whether you're fine-tuning your gearing for the track or simply replacing a worn sprocket, the Vortex 840ZGV4-45 is a proven choice trusted by racers and street riders alike. Always replace the front sprocket and drive chain at the same time for optimal drivetrain longevity.