Reach adjust headset to suit 44/56 headtubes, allowing you to alter your top-tube length by +/- 5mm.
Fits headtube internal diameter - 44mm Upper - EC44, 55.95mm Lower - ZS56
New upper cup design to save weight and increase dual crown fork clearance.
To suit standard 1 1/8" straight steerer tube forks only.
41mm OD, 45 x 45 Degree AC sealed bearings
Insertion depth: 9mm Upper, 16mm Lower
Cup Stack height: 3.5mm lower, 11mm upper - Total upper stack height inc bearing cover: 15mm
Proudly machined in the UK from 6082 T6, Black Anodize finish