Vortex 435ZB-42 CAT5 Aluminum Rear Sprocket 42T

The Vortex 435ZB-42 is a 42-tooth CAT5 aluminum rear sprocket engineered for high-performance racing applications. Fully CNC-machined in the USA from a specially formulated aluminum alloy developed exclusively to Vortex's own specifications, this sprocket delivers an exceptional strength-to-weight ratio over stock steel alternatives.

Key Features:

• Lightweight CAT5 aluminum construction — reduces unsprung rotational mass for improved throttle response and acceleration
• 100% CNC manufactured in the USA — precision machining ensures consistent tooth geometry and tight tolerances
• Vortex-exclusive alloy formulation — proprietary aluminum blend developed to Vortex specifications for optimal durability and wear resistance
• Patented tooth profile design — unique geometry promotes smoother chain engagement and extends sprocket service life
• Available in 4 anodized colors with contrasting silver machine-cut accents for a premium finished appearance
• 42-tooth rear sprocket — suited for fine-tuning final drive gearing on compatible motorcycles and sportbikes

The Vortex CAT5 sprocket series is a popular choice among club racers and track day enthusiasts who demand dependable, race-proven drivetrain components. The patented sprocket design sets it apart from conventional aftermarket options, providing long-lasting performance even under sustained high-RPM racing conditions.