Vortex 170ZK-38 VTX Aluminum Rear Sprocket 38T

The Vortex 170ZK-38 is a 38-tooth CNC-machined aluminum rear sprocket built to Vortex's exacting race standards. Manufactured in the USA from 7075 T6 billet aluminum, this sprocket delivers an optimal balance of lightweight performance and long-lasting durability for street and track applications.

Key Features:

• 7075 T6 billet aluminum construction — reduces rotating mass for improved throttle response and drivetrain efficiency
• 100% CNC machined — precision-manufactured to tight tolerances for smooth, consistent power transfer
• CAT5 anodized finish — electrically coated for a bright, corrosion-resistant surface that holds up under demanding conditions
• Vortex patent-pending saber tooth groove design — unique tooth profile extends sprocket and chain longevity
• 38-tooth rear sprocket — optimized gearing for acceleration and mid-range performance
• Made in the USA by a U.S.-based manufacturer with over 15 years of motorsport experience

Vortex Racing components are tested on-track with feedback from professional race teams worldwide, making the 170ZK-38 a trusted upgrade for riders seeking a lightweight, high-performance replacement rear sprocket.