Fits headtube internal diameter - 44mm Upper - EC44, 55.95mm Lower - ZS56
Upper cup is external (EC) - will fit frames using ZS44 (ZS) upper headcup as standard.
To suit standard 1 1/8" to 1.5" Tapered steerer tube forks. (28.6 - 39.79)
45 x 45 Degree AC sealed bearings, integrated upper and lower rubber seals.
Insertion depth: 9mm Upper, 16mm Lower.
Cup Stack height: 3.5mm - Total upper stack height inc bearing cover: 15mm
Proudly machined in the UK from 6082 T6, Black Anodize finish
Complete with headset top-cap and star-nut.
If you wish to use this headset with both a 1 1/8" and Tapered fork you can purchase a 1 1/8" reducer crown below - This allows great flexibility with fork choice and future upgrades.
Simply order the correct headset from the list of available headtube lengths below, if your frame is not listed please contact us.