Bike Forums - Headset sizing problems w/ Bottechia CF...

Quote:

Originally Posted by jinws (Post 6004076)

I'm also having issues with the bearings. I purchased a CC IS-2, and the bearings do not fit into the cups in the headtube at all. The headtube measures just under 41mm in diameter. and the bearings are about 41.8mm.

Can't tell you if it sticks out of the headtube or not, I can't even get it in.

Sounds like you actually bought the headset designed for the Campy "hiddenset", which has a 41.8 OD bearing. I found the hard way myself that there are about five or seven different "integrated" systems out there, and most have zero interchange compatibility...at all. Here is a good page from Park tool that explains it all... http://www.parktool.com/repair/readhowto.asp?id=68