Vortex 438ZK-42 Rear Aluminum Sprocket 42 Tooth

The Vortex 438ZK-42 is a rear aluminum sprocket featuring a 42-tooth count, engineered for motorcycle applications where lightweight performance and precise power delivery are essential. Vortex Racing is a well-respected name in the powersports industry, known for producing high-quality drivetrain components trusted by racers and performance street riders alike.

Key Features:

• 42-tooth rear sprocket for optimized gear ratio and acceleration tuning
• Lightweight aluminum construction reduces unsprung and rotating mass compared to steel sprockets
• CNC-machined for precise tooth profile and consistent chain engagement
• Hard-anodized finish for improved wear resistance and corrosion protection
• Designed to meet the demands of both track and performance street use
• Part of Vortex Racing's ZK series sprocket lineup

Upgrading to the Vortex 438ZK-42 rear sprocket allows riders to fine-tune their motorcycle's final drive ratio, improving low-end torque and acceleration response. The aluminum material keeps weight savings significant without sacrificing durability under racing conditions.