A premium CNC machined headset for your Airdrop Fade, Edit or Filter frame. Airdrop headsets are a no compromise affair. All headset cups are CNC made to ensure a perfect fit every time. We spec a dual sealed, stainless steel angular contact bearing. The upper headset cover comprises of two rubber seals, to keep out the worst of the weather and grime. All headsets also include a starnut and our very own sessions not seconds top cap with stainless bolt. Please Note: compatible with forks that have a tapered 1 1/8" - 1 1/2" steerer. Ideal for most modern MTBs. Features Compatible With: Fade, Edit, Filter, Bitmap Fitment: ZS44 upper / ZS56 lower Cups: 6061 T-6 aluminium Cover: 6061 T-6 aluminium Crown Race: Steel Weight: 122g Spec Head Tube Upper: 44mm (ZS44) Head Tube Lower: 56mm (ZS56) Upper Cup Insertion Depth: 9mm Lower Cup Insertion Depth: 11mm Upper Stack Height: 9mm Lower Stack Height: 4mm Upper Bearing: 41mm Lower Bearing: 52mm Fork Steerer: 1 1/8" - 1 1/2" Tapered What's Included Upper & lower cups Upper & lower bearings Fork crown race Sessions Not Seconds topcap Star fangled nut & bolt