Industry Nine iRiX Upper ZS44/28.6 Orange 5mm Cover Model=V2 Tubeless Valve Kit The asymmetric bolt pattern is

The asymmetric bolt pattern is designed to make sure you cannot install the ring in the wrong rotational orientation

5" front/rear rear (HG 8-11sp) rim Aeffect-R hub Trace axle/spacing (mm) 12x148 Boost hole 28h spoke DB nipple brass color black weight 1920g/set

It is a compact

Torque 4Nm with T20 tool

Industry Nine iRiX Upper ZS44/28.6 Orange 5mm Cover Model=V2 Tubeless Valve Kit The asymmetric bolt pattern isCustomize 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 orange