Vortex 452AKV4-43 VTX Aluminum Rear Sprocket Black Hardcoat Sprockets - V4 43-Tooth 520-Pitch

The Vortex 452AKV4-43 is a 43-tooth, 520-pitch aluminum rear sprocket from Vortex Racing's next-generation V4 Sprocket line. Building on the iconic CAT5 platform that has defined Vortex sprockets since 1995, the V4 design delivers a 10–15% reduction in weight without sacrificing structural integrity, thanks to a refined cutout pattern and fully machined faces on both sides. This sprocket features a PTFE black hardcoat finish (polytetrafluoroethylene), which bonds directly to the aluminum surface to dramatically increase wear resistance and extend service life.

Key Features:

• V4 Design: New-generation sprocket architecture offering 10–15% weight savings over the previous CAT5 design
• 520 Pitch: Compatible with standard 520-pitch chains
• 43 Teeth: Rear sprocket tooth count for precise gear ratio tuning
• PTFE Black Hardcoat: Polytetrafluoroethylene (Teflon-based) coating bonded to aluminum for increased durability and reduced friction
• 100% CNC Manufactured in the USA: Machined to tight tolerances from aerospace-grade aluminum
• Specially Formulated Alloy: Aluminum alloy developed to Vortex's proprietary specifications
• Unique Tooth Design: Vortex-patented tooth geometry for enhanced chain engagement and longevity
• Machined Both Sides: Dual-face machining for a clean, two-tone appearance and balanced weight distribution

Vortex Racing is a U.S.-based manufacturer with decades of experience supplying drivetrain components to professional racing teams across road racing, motocross, supercross, flat track, and high-performance street applications. The 452AKV4-43 is an ideal upgrade for riders looking to reduce unsprung and rotational weight while maintaining proven reliability at the rear wheel.