Vortex 427ZK-47 Aluminum Rear Sprocket 47-Tooth

The Vortex 427ZK-47 is a 47-tooth aluminum rear sprocket designed for high-performance motorcycle applications. Engineered by Vortex Racing — a trusted name in the motorsports and road racing community — this sprocket delivers an optimal balance of lightweight construction and proven durability on both the track and street.

Key Features:

• 47-Tooth Configuration: Provides a lower gear ratio for increased acceleration and aggressive throttle response
• Lightweight Aluminum Construction: Significantly reduces unsprung and rotating mass compared to steel sprockets, improving overall handling and performance
• Vortex Racing Quality: Manufactured to tight tolerances for precise chain engagement and long service life
• Anodized Finish: Helps resist corrosion and wear while providing a clean, race-ready appearance
• Direct Replacement Fit: Designed as a bolt-on upgrade or OEM-style replacement for compatible models

Whether you're tuning your bike for the track or looking for a performance upgrade on the street, the Vortex 427ZK-47 rear sprocket is a proven choice for riders who demand precision-engineered components.