Vortex 642AZUV4-43 VTX Aluminum Rear Sprocket 43T

The Vortex 642AZUV4-43 is a 43-tooth aluminum rear sprocket from Vortex's VTX series, engineered for powersports riders seeking a lightweight, high-performance alternative to stock steel sprockets. Precision-machined from aircraft-grade 7075 aluminum, this sprocket delivers significant unsprung weight reduction without sacrificing durability under demanding riding conditions.

Key Features:

• 43-tooth rear sprocket configuration for optimized gear ratio tuning
• Precision-machined from high-strength aluminum alloy for maximum weight savings
• Hard anodized finish for increased surface hardness and corrosion resistance
• CNC-machined to tight tolerances for smooth, precise chain engagement
• Lightweight design reduces unsprung and rotating mass for improved acceleration response
• Direct OEM replacement fitment — no modifications required
• Part of Vortex's trusted VTX sprocket lineup used by professional and amateur racers worldwide

The Vortex VTX aluminum rear sprocket is an ideal upgrade for riders looking to fine-tune their drivetrain gearing, reduce drivetrain weight, and improve overall powertrain efficiency. As with all Vortex sprockets, the 642AZUV4-43 is designed for a precise, hassle-free installation.