Vortex 526ZUV4-45 VTX Aluminum Rear Sprocket Chain Pitch Sprockets - 45-Tooth 520

The Vortex 526ZUV4-45 is a high-performance VTX series aluminum rear sprocket designed for riders seeking a lightweight, durable alternative to stock steel sprockets. Engineered from premium 7075-T6 aluminum alloy, this sprocket delivers exceptional strength-to-weight savings ideal for street and track applications.

Key Features:

• 45-Tooth rear sprocket for tuned acceleration and low-end torque
• 520 chain pitch compatibility for precise fitment with 520-series drive chains
• Constructed from 7075-T6 aircraft-grade aluminum for a significant weight reduction over OEM steel sprockets
• Hard anodized finish for corrosion resistance and extended wear life
• CNC-machined for tight tolerances and consistent chain engagement
• Drilled and lightened design further reduces unsprung rotational mass
• Direct OEM replacement — bolt-on fitment with no modifications required

The Vortex VTX aluminum rear sprocket is a popular upgrade for sport bike and UTV/powersports enthusiasts looking to fine-tune their drive ratio. The 45-tooth count allows for improved acceleration response compared to stock gearing, making it well-suited for both street riding and competitive track use.