Vortex RS403HK Racing Rear Sprocket Sprockets

The Vortex RS403HK is a high-performance rear sprocket engineered for sport and racing motorcycle applications. Vortex Racing is a trusted name in powersports drivetrain components, known for producing precision-machined sprockets that deliver superior strength, reduced weight, and consistent performance under demanding conditions.

Key Features:

• Precision CNC-machined from high-quality materials for exact tooth profile and long service life
• Part of the Vortex Racing Sprocket (RS) lineup, designed for performance and racing use
• Lightweight construction helps reduce unsprung and rotating mass for improved throttle response
• Hard-anodized finish (where applicable) provides corrosion resistance and surface durability
• Manufactured to tight tolerances for smooth, quiet chain engagement
• Direct OEM-style fitment for straightforward installation

Vortex sprockets are a popular upgrade over stock components for riders seeking improved performance, reduced drivetrain weight, or a replacement for worn OEM sprockets. The RS403HK is designed to work with the correct chain pitch for the intended application, ensuring reliable power transfer from the engine to the rear wheel.