Vortex 337ZR-49 Rear Sprocket Pitch Aluminum Sprockets - 49-Tooth 520

The Vortex 337ZR-49 is a high-performance rear sprocket featuring a 49-tooth configuration designed for sport and street motorcycles running a 520 pitch chain. Engineered by Vortex Racing — a trusted name in competitive and street performance drivetrain components — this sprocket delivers reliable power transfer and exceptional durability.

Key Features:

• 49-Tooth rear sprocket for optimized acceleration and gear ratio tuning
• 520 Pitch chain compatibility
• Lightweight 7075-T6 aluminum construction for reduced unsprung weight
• Hard anodized finish for corrosion resistance and long service life
• CNC-machined for precise tolerances and consistent fitment
• Direct OEM-style replacement with performance upgrades

The Vortex 337ZR rear sprocket series is a popular choice for riders looking to fine-tune their motorcycle's power delivery without sacrificing quality or reliability. The 49-tooth count provides a balance between low-end torque and top-end speed, making it suitable for both street riding and track use.