Vortex 254ZK-48 Aluminum Rear Sprocket 48T

The Vortex 254ZK-48 is a 48-tooth aluminum rear sprocket designed as a high-performance replacement for sport and street motorcycles. Engineered by Vortex Racing — a trusted name in motorcycle drivetrain components — this sprocket delivers a precise fit and improved performance over OEM alternatives.

Key Features:

• 48-Tooth configuration for optimized acceleration and drive ratio tuning
• Lightweight aluminum construction reduces unsprung and rotating mass for improved handling and throttle response
• Precision CNC-machined for consistent tooth geometry and long chain life
• Hard anodized finish for corrosion resistance and extended service life
• Direct bolt-on fitment — no modifications required for compatible applications
• Manufactured to strict tolerances for smooth, quiet power transfer

The Vortex 254ZK series sprockets are a popular upgrade for riders looking to fine-tune gearing for track days, commuting, or sport riding. Replacing your rear sprocket with a higher tooth count like this 48T unit provides stronger low-end acceleration, making it ideal for technical courses or stop-and-go riding conditions.