The headtube has to have at least 44mm internal diameter
If you have a headtube designed for an integral 1.1/8th you can make it work with an external cup but the frames geo will be affected; the headtube will be raised and its angle slackened.
The Hope docs are here - quite useful.
The headtube has to have at least 44mm internal diameter
If you have a headtube designed for an integral 1.1/8th you can make it work with an external cup but the frames geo will be affected; the headtube will be raised and its angle slackened.
The Hope docs are here - quite useful.