State Bicycle Co. Fixed Gear Fixie Chromoly Frame and Fork Set State Bicycle frame sets include the frame, fork, and headset 4130 TIG-welded Chromoly frame Set Headset is threadless 1-1/8" A-head. Accepts 27.2mm seatpost Frames designed for a 68mm x 103mm bottom bracket Will accept 9mm or 10mm axle/spindles. 100mm / 120mm dropout spacing