Brand new FSA ZS44 (also known as Zero Stack or semi integrated) internal headset upper top cup assembly including bearing, wedge and top cover for 1 1/8" fork steerers.

Fits headtubes with inside diameter ~44mm and forks with steerer diameter of ~28.6mm.

Forged and CNC machined aluminium cup, sealed cartridge bearing, aluminium split wedge and tapered top cover (15mm cover height).

OEM spec so no packaging or manual but absolutely brand new and never fitted.

May be very small cosmetic marks from storage.