Industry Nine iRiX Upper IS42/28.6 Silver 5mm Cover Description-Center Lock Lockring Apply more layers as necessary

Apply more layers as necessary

They are 1" hex drive interface compatible

For SkiGo poles

Tread pattern designed to increase mileage

Industry Nine iRiX Upper IS42/28.6 Silver 5mm Cover Description-Center Lock Lockring Apply more layers as necessaryCustomize and upgrade your cockpit with iRiX options Separate upper and lower headset cup assemblies to mix and match Upper assemblies include star nut and top cover, while lower assemblies include split crown race Crown race and top cover employ removable and replaceable silicone lip seals to keep the sealed, 440c stainless steel bearings contaminant free TECH SPECS model iRiX upper S. H. I. S. IS42 28. 6 upper lower upper stack 5mm color silver