Fits headtube internal diameter - Upper - EC44 - 44mm, Lower - EC49 - 49.61mm
Upper cup is external (EC) - will fit frames using ZS44 (ZS) upper headcup as standard.
To suit tapered steerer tube forks. (28.6 - 39.79)
45 x 45 Degree AC sealed bearings.
Insertion depth: 9mm Upper, 16mm Lower.
Cup Stack height: 9mm upper- Total upper stack height inc bearing cover: 15mm
Cup Stack height: 14mm lower.
Proudly machined in the UK from 6082 T6, Black Anodize finish
Complete with headset top-cap and star-nut.
Simply order the correct headset from the list of available headtube lengths below, if your frame is not listed please contact us.