FSA Orbit UF Threadless Headset The FSA Orbit UF threadless headset is constructed of aluminum and features cartridge ball bearings. Features Forged and CNC machined 6061/T6 Aluminum cups Patented alignment tip for increased durability and performance Upper cup uses double sealed 5/32" ball bearings Lower cup uses double sealed cartridge bearings Upper and lower water seals Laser etched aluminum top cap Split 7075 aluminum crown race1 1/8"straight steerersize Stack Height - 17+15=32mm Black or Silver anodized finish Weight - 99 grams (1"), 102 grams (1 1/8")Specifications Color Black Crown Race26. 4Stack Height32. 4 mm Bearing Type Cartridge Headset Type External Cups Weight102 g Material Aluminum Steerer Tube1-1/8", Threadless | Fsa | Orbit Uf Threadless Headset | Black | 1 1/8"