Vortex 920ZR-40 VTX Aluminum Rear Sprocket Pitch Sprockets - 40-Tooth 520

The Vortex 920ZR-40 is a high-performance 40-tooth aluminum rear sprocket from Vortex Racing's VTX series, engineered for riders who demand lightweight precision and long-lasting durability. Machined from high-strength 7075-T6 aluminum, this sprocket delivers significant unsprung weight savings over OEM steel units without sacrificing rigidity or wear resistance.

Key Features:

• Material: High-strength 7075-T6 aluminum construction for maximum durability and reduced weight
• Tooth Count: 40 teeth for optimized power delivery and gear ratio tuning
• Series: VTX (ZR) — Vortex's premium aluminum rear sprocket line
• Chain Pitch: 520 pitch compatible
• Hard anodized finish for corrosion resistance and extended service life
• CNC-machined to tight tolerances for smooth, precise chain engagement
• Lightweight design reduces unsprung and rotating mass for improved throttle response and handling

Vortex Racing is a trusted name in the powersports industry, known for producing competition-grade drivetrain components used on both the street and track. The 920ZR-40 rear sprocket is a direct replacement or performance upgrade, making it an ideal choice for sport bike and motorcycle enthusiasts looking to fine-tune their final drive ratio.