Industry Nine iRiX Upper ZS44/28.6 Silver 5mm Cover CheckoutTitle=Finish Line Speed Degreaser and you should clear it

and you should clear it regularly by blowing vigorously through the mask

Do not exceed 6 Nm torque

These will fit on Shimano Hyperglide style freehub spline (geared or singlespeed)

and the 2023-2024 updates look to improve on a solid boot

Step In Side Towers

Industry Nine iRiX Upper ZS44/28.6 Silver 5mm Cover CheckoutTitle=Finish Line Speed Degreaser and you should clear itCustomize 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. ZS44 28. 6 upper lower upper stack 6mm color silver