VORTEX Steel Rear Sprocket - 47 Tooth 438S-47

Whether you're chasing lap times or maximizing top-end speed, sprocket selection directly impacts your power delivery and acceleration characteristics. The VORTEX 47-tooth rear sprocket gives you the gear ratio optimization needed for demanding track conditions or high-performance street riding, while the hardened steel construction ensures reliability through thousands of heat cycles without tooth degradation.

Built with cupped tooth geometry and weight-saving design, this sprocket reduces unsprung mass and rotational inertia—translating to quicker throttle response and more predictable handling feedback. The electroplated satin black finish resists corrosion in harsh racing environments, so you spend less time on maintenance and more time extracting performance.

• Material: Carbon steel
• Tooth count: 47
• MPN: 438S-47
• Finish: Electroplated satin black
• Teeth: Hardened for durability
• Design: Cupped tooth-to-body geometry
• Weight: Optimized for reduced inertia
• Corrosion resistance: Yes
• Fitment: Vehicle-specific (verify application)
• Installation: Bolt-on