Vortex 642CZKV4-44 VTX Aluminum Rear Sprocket Sprockets - 44T Black

The Vortex 642CZKV4-44 is a high-performance aluminum rear sprocket designed as a direct OEM replacement and performance upgrade for compatible motorcycles. Engineered by Vortex Racing, one of the most trusted names in motorcycle drivetrain components, this sprocket delivers a lightweight alternative to stock steel units without sacrificing durability or precision.

Manufactured from 7075-T6 aircraft-grade aluminum, this 44-tooth rear sprocket is hard anodized for corrosion resistance and long service life. The lightweight construction reduces unsprung rotational mass, contributing to improved throttle response and quicker acceleration compared to heavier OEM steel sprockets.

Key Features:

• 44-tooth rear sprocket for fine-tuned gearing options
• Constructed from lightweight 7075-T6 aircraft-grade aluminum
• Hard anodized black finish for corrosion and wear resistance
• CNC-machined for precise tolerances and consistent chain engagement
• Direct bolt-on fitment — no modifications required
• Significantly lighter than OEM steel sprockets, reducing rotational mass
• Compatible with standard O-ring, X-ring, and Z-ring drive chains

Vortex sprockets are manufactured to strict quality standards and are a popular choice among street riders and track enthusiasts seeking reliable performance drivetrain components. The 642CZKV4-44 is a straightforward upgrade that pairs well with a new drive chain for a complete drivetrain refresh.