Vortex 165ZB-42 Aluminum Rear Sprocket 420 Pitch 42 Tooth Blue

The Vortex 165ZB-42 is a lightweight CAT5 aluminum rear sprocket featuring 42 teeth and 420 pitch chain compatibility. This high-performance racing sprocket is manufactured from 7075-T6 aluminum alloy using precision CNC machining in the USA, ensuring exact concentricity and durability for demanding motorcycle applications.

Key Features:

• 42-tooth configuration for 420 pitch chain systems
• Vibrant blue anodized finish with contrasting silver machined highlights
• 7075-T6 billet aluminum construction for optimal strength-to-weight ratio
• 100% CNC manufactured in the USA to Vortex specifications
• Vortex patented tooth design with saber tooth grooves for extended longevity
• Strategic lightening holes reduce rotating mass for improved acceleration
• Color anodizing excludes sweeps, mud grooves, and teeth for maximum visual impact

Replacing heavy OEM steel sprockets with this lightweight aluminum design reduces rotating mass, resulting in improved acceleration, deceleration, and directional changes. The precision manufacturing ensures perfect fitment and reliability for both track and street applications.