Industry Nine iRiX External Cup Headset Solutions HSA-EC49B-S

- Customize and upgrade your cockpit with iRiX options\n- Separate upper and lower headset cup assemblies to mix and match\n- Upper assemblies include star nut and top cover, while lower assemblies include split crown race\n- Crown race and top cover employ removable and replaceable silicone lip seals to keep the sealed, 440c stainless steel bearings contaminant-free