Vortex 438ZR-51 Steel Rear Sprocket 51-Tooth 428 Chain

The Vortex 438ZR-51 is a 51-tooth steel rear sprocket designed for motorcycles running a 428-pitch chain. Engineered by Vortex Racing, a trusted name in performance drivetrain components, this sprocket is built to deliver reliable power transfer, precise fitment, and long service life under demanding riding conditions.

Key Features:

• 51-Tooth Rear Sprocket — ideal for acceleration-focused gearing setups
• 428 Chain Pitch Compatible — designed for 428-series drive chains
• Steel Construction — offers superior durability and wear resistance compared to aluminum alternatives
• Precision CNC Machined — tight tolerances for smooth, consistent chain engagement
• Direct OEM-Style Fitment — bolt-on replacement with no modifications required
• Vortex ZR Series — part of Vortex's proven steel sprocket lineup trusted by street and track riders

The Vortex 438ZR-51 rear sprocket is an excellent choice for riders looking to fine-tune their motorcycle's gearing for improved low-end torque and acceleration. As a steel sprocket, it provides exceptional longevity, making it well-suited for everyday street riding as well as track use.