Vortex 427KV4-48 VTX Aluminum Rear Sprocket Pitch Sprockets - 48-Tooth 428

The Vortex 427KV4-48 is a high-performance VTX series aluminum rear sprocket featuring a 48-tooth count designed for 428 pitch chain applications. Engineered by Vortex Racing, a trusted name in competitive and street motorcycle drivetrain components, this sprocket delivers an excellent balance of lightweight performance and durability.

Manufactured from aircraft-grade 7075-T6 aluminum, the VTX sprocket significantly reduces unsprung rotational mass compared to steel alternatives, contributing to improved throttle response and overall drivetrain efficiency. The hard-anodized finish provides corrosion resistance and extends the service life of the sprocket under demanding riding conditions.

Key Features:

• 48-tooth rear sprocket for 428 pitch chain
• Constructed from lightweight 7075-T6 aluminum
• Hard-anodized finish for corrosion resistance and durability
• CNC-machined for precise tooth profile and consistent engagement
• Reduces unsprung rotational mass for improved performance
• Direct OEM-style fitment — no modifications required
• Manufactured by Vortex Racing to strict quality standards

The Vortex VTX aluminum rear sprocket is an ideal upgrade for riders seeking to fine-tune their final drive ratio or replace a worn OEM sprocket with a premium aftermarket alternative. As with all Vortex sprockets, it is recommended to replace the drive chain simultaneously for optimal performance and longevity.