First Headset D44K

A premium threadless/Ahead integrated headset to fit modern bikes with a 41.8/46.8mm OD bearing seat and tapered 1-1/4" - 1-1/8" steerer
Alloy cap/topcap w/ ACB sealed cartridge bearings (Upper & Lower = 45°x45°)
IS42/28.6 – IS47/33
Black