Vortex 170ZKV4-38 VTX Aluminum Rear Sprocket 38T

The Vortex 170ZKV4-38 is a high-performance aluminum rear sprocket featuring 38 teeth, designed as a direct-fit replacement or performance upgrade for compatible motorcycles. Engineered by Vortex Racing — a trusted name in powersports drivetrain components — this sprocket delivers the ideal balance of lightweight construction and durability.

Machined from high-grade 7075-T6 aluminum, the VTX series sprocket reduces unsprung weight compared to stock steel sprockets, contributing to improved throttle response and overall drivetrain efficiency. The hard-anodized finish provides excellent resistance to corrosion and wear, extending the service life of the sprocket even under demanding riding conditions.

Key Features:

• 38-tooth rear sprocket configuration
• Constructed from lightweight, high-strength 7075-T6 aluminum
• Hard-anodized finish for corrosion and wear resistance
• CNC-machined for precise tooth geometry and consistent chain engagement
• Direct OEM replacement fitment — no modifications required
• Reduces unsprung rotational mass for improved performance
• Part of Vortex's VTX aluminum sprocket lineup

The Vortex 170ZKV4-38 is an excellent choice for riders seeking a performance-oriented rear sprocket that maintains OEM fitment standards while shedding unnecessary weight from the drivetrain.