Vortex 642CKV4-42 VTX Aluminum Rear Sprocket Pitch Sprockets - 42-Tooth 530

The Vortex 642CKV4-42 is a 42-tooth, 530-pitch aluminum rear sprocket from Vortex Racing's VTX lineup, engineered for performance street and track riders who demand lightweight precision hardware. CNC-machined 100% in the USA from a specially formulated aluminum alloy to Vortex's exact specifications, this sprocket delivers a meaningful reduction in rotating mass compared to a steel alternative — translating directly to improved throttle response and more agile handling.

Key Features:

• 42-Tooth / 530-Pitch — direct replacement tooth count and chain pitch for compatible applications
• 100% CNC Manufactured in the USA — machined to tight tolerances for precise fit and consistent performance
• Specially Formulated Aluminum Alloy — Vortex-spec material balances lightweight construction with durability
• Vortex Patented Tooth Design — unique tooth profile increases sprocket longevity and reduces chain wear
• Silver Anodized Finish — corrosion-resistant anodizing protects the aluminum surface and maintains appearance
• Reduced Rotating Mass — lightweight aluminum construction aids acceleration, deceleration, and directional changes

Vortex Racing is a U.S.-based manufacturer with over 15 years of experience producing top-quality motorcycle racing components for Road Racing, Motocross, Supercross, Flat Track, and Minibike competition. Every sprocket is validated on track with feedback from professional race teams worldwide, making the 642CKV4-42 a proven upgrade for performance-minded riders.