Vortex 642AZUV4-48 Aluminum Rear Sprocket 48-Tooth Silver

The Vortex 642AZUV4-48 is a 48-tooth aluminum rear sprocket engineered for riders who demand lightweight performance without sacrificing durability. Built to Vortex's exacting standards, this silver anodized sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy, delivering a precision-fit replacement or performance upgrade for your powersports application.

Key Features:

• 48-Tooth / Silver Anodized Finish — bright, corrosion-resistant silver anodizing protects the aluminum substrate for long service life
• 100% CNC Manufactured in the USA — machined to the tightest tolerances for a perfectly concentric sprocket every time
• Specially Formulated Aluminum Alloy — lightweight construction significantly reduces rotating mass compared to OEM steel sprockets, improving acceleration response
• Vortex Patented Tooth Design — unique tooth profile reduces chain drag and friction, extending the service life of both the sprocket and chain
• Silver Anodized Surface Treatment — helps prevent corrosion and maintains appearance under demanding riding conditions
• Drop-In Replacement — designed to replace the OEM rear sprocket with no modifications required

Reducing rotating mass at the rear wheel is one of the most effective ways to improve powertrain efficiency. The Vortex 642AZUV4-48 aluminum rear sprocket delivers measurable weight savings over stock steel units, translating directly into sharper throttle response and improved overall performance. Vortex Racing's patented sprocket geometry is engineered to work in harmony with your chain for maximum drivetrain longevity.