Vortex 251K-44 Black 530 Aluminum Rear Sprocket 44T

The Vortex 251K-44 is a 44-tooth, 530-pitch rear sprocket finished in PTFE black hardcoat, engineered for high-performance street and racing applications. CNC-machined entirely in the USA from a specially formulated F5 aluminum alloy developed to Vortex's own proprietary specifications, this sprocket delivers an exceptional balance of lightweight construction and long-lasting durability.

Key Features:

• Lightweight F5 Aluminum Construction – Specially formulated alloy per Vortex specifications reduces unsprung rotating mass without sacrificing strength
• 100% CNC Manufactured in the USA – Precision-machined domestically for consistent quality and tight tolerances
• PTFE Black Hardcoat Finish – Polytetrafluoroethylene (Teflon) coating significantly increases wear resistance and extends sprocket service life
• Patented Vortex Tooth Design – Unique tooth profile engineered exclusively by Vortex promotes smoother chain engagement and reduces wear on both the sprocket and chain
• 530 Chain Pitch – Compatible with standard 530-series drive chains
• 44 Teeth – Provides tunable final drive ratio for acceleration or top-speed optimization

Vortex sprockets are a trusted choice among racers and performance riders worldwide. The 251K-44 combines race-proven engineering with street-ready durability, making it an ideal upgrade from OEM sprockets for riders seeking improved performance and longevity.