Vortex 527KV4-50 VTX Aluminum Rear Sprocket Pitch Sprockets - 50T 520

The Vortex 527KV4-50 is a 50-tooth aluminum rear sprocket from Vortex's VTX series, designed for riders seeking a lightweight, high-performance alternative to stock steel sprockets. Machined from high-grade 7075-T6 aluminum, this sprocket delivers significant weight savings without sacrificing durability for street and track use.

Key Features:

• 50-Tooth rear sprocket for increased acceleration and lower-end torque
• 520 chain pitch compatibility for direct OEM-style replacement or 520 conversion setups
• 7075-T6 aircraft-grade aluminum construction for superior strength-to-weight ratio
• Hard anodized finish for corrosion resistance and extended service life
• CNC machined to precise tolerances for smooth, quiet chain engagement
• Lightweight design reduces unsprung rotational mass for improved handling response
• Direct bolt-on fitment — no modifications required

The Vortex VTX series is a favorite among sport bike enthusiasts and club racers who want a proven performance upgrade at a competitive price point. The 527KV4-50 is an ideal choice for riders looking to re-gear for tighter, more technical courses or to sharpen throttle response on the street.