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 - EC56
New upper cup design to save weight and increase dual crown fork clearance.
To suit Tapered steerer tube fork.
41mm OD, 45 x 45 Degree AC sealed bearings.
Insertion depth: 9mm Upper, 14mm Lower.
Cup Stack height: 14.5mm lower, 11mm upper - Total upper stack height inc bearing cover: 15mm
Machined in the UK from 6082 T6, Black Anodize finish