Vortex 338ZK-45 Black 45-Tooth CAT5 Aluminum Rear Sprocket

The Vortex 338ZK-45 is a 45-tooth black anodized CAT5 aluminum rear sprocket built to Vortex Racing's exacting standards for street and track performance. Engineered for riders who demand lightweight, precision drivetrain components, this sprocket delivers a noticeable reduction in rotating mass compared to stock steel units.

Key Features:

• 45-Tooth rear sprocket — ideal for tuning acceleration and low-end response
• CAT5 aluminum construction — specially formulated alloy per Vortex specifications for strength and longevity
• Black anodized finish — corrosion-resistant, hard-anodized for durability and a clean appearance
• 100% CNC machined in the USA — tight tolerances for precise chain engagement and fit
• Lightweight design — reduces unsprung and rotating mass for improved throttle response
• Direct bolt-on replacement — no modifications required for compatible applications

The Vortex 338ZK-45 rear sprocket is the choice of racers and performance street riders looking to optimize their motorcycle's final drive gearing. Paired with a quality chain, it delivers reliable, consistent performance lap after lap.