FSA Orbit DL 1-1/8" Headset The FSA Orbit DL headset is an affordable, easily serviceable headset for conventional head tubes. It spins smoothly on caged retainer bearings top and bottom, and is protected from the elements by lower and upper water seals. The cups are lightweight forged and CNC machined 6061-T6 aluminium. The Orbit DL will have you pushing "Full Speed Ahead". Features 1-1/8in, caged ball bearings Forged and CNC machined 6061/T6 alloy cups Upper and lower water seals diameter 5/32inx22 caged ball bearings Stack Height 16. 7+12=28. 7mm Weight: 160g | Fsa | Orbit Dl 1-1/8" Headset Black