Vortex 251AKV4-48 Aluminum Rear Sprocket 48-Tooth

The Vortex 251AKV4-48 is a 48-tooth aluminum rear sprocket designed as a high-performance replacement for motorcycles requiring the AKV4 bolt pattern. Machined from lightweight, high-strength aluminum alloy, this sprocket offers a significant weight savings over OEM steel sprockets without sacrificing durability under demanding riding conditions.

Key Features:

• 48-Tooth count for optimized acceleration and power delivery
• Precision CNC-machined from high-strength aluminum alloy
• Hard anodized finish for corrosion resistance and extended wear life
• Lightweight construction reduces unsprung rotational mass
• Direct OEM-style fitment — no modifications required
• Compatible with standard 520 chain pitch (verify chain pitch for your application)

Vortex sprockets are manufactured to tight tolerances, ensuring smooth, quiet chain engagement and consistent performance. The 251AKV4-48 is an excellent choice for riders looking to fine-tune their gearing for the track or street while reducing overall drivetrain weight.