Columbus Compass 1-1/2

Without the Crown race... Head Set Standard IS42-28.6/IS52-40 1-1/8” Upper 1-1/2” Lower Upper Stack Height 16mm Lower Stack Height 0.8mm Head Tube O.D. Ø 46mm/56mm Head Tube I.D. Ø 41.8mm/52mm To be used with Columbus tapered headtube CYRT18250 using the internal-cups ZCALT46UP and ZCALT56DOWN to host 1-1/2” forks The Columbus Integrated Headset keeps your steering smooth and responsive on 2013 Experience, Mash Bolt, Mash CXSS, Mash Histogram, Vigorelli, and Saetta models. Built tough for riders who demand reliability.