Vortex 251AZKV4-48 Aluminum Rear Sprocket 48T

The Vortex 251AZKV4-48 is a 48-tooth aluminum rear sprocket engineered for performance motorcycle applications. Vortex Racing is renowned in the motorsports industry for producing precision-machined drivetrain components trusted by racers and street riders alike.

Machined from high-grade 7075 aluminum alloy, this rear sprocket delivers a significant weight reduction over stock steel sprockets without sacrificing durability or performance. The lightweight construction helps reduce unsprung and rotating mass, contributing to improved throttle response and overall drivetrain efficiency.

Key Features:

• 48 teeth — allows for precise final drive ratio tuning for acceleration or top speed optimization
• Precision-machined from lightweight aluminum alloy for reduced rotating mass
• Hard-anodized finish for corrosion resistance and extended service life
• CNC-machined to tight tolerances for smooth, consistent chain engagement
• Direct OEM-style fitment for straightforward installation
• Compatible with standard motorcycle drive chains (verify pitch and width for your application)

Whether you're tuning for the track or optimizing street performance, the Vortex aluminum rear sprocket is a proven upgrade that balances weight savings with the reliability demanded by serious riders.