Traditional 1 1 8 in headtubes or 34mm inside diameter headtubes cannot accept a tapered steering column fork therefore we do not make an adapter that will allow you to use a tapered steering column on a traditional 1 1 8 in headtube.
Tapered fork to non tapered frame adapter.
This will work with any bike with a pressed bottom cup that is 1 1 8 although i believe this no longer allows for frame warranty check with bike manufactur.
If your mountain bike came with a straight steerer tube you can use this bearing adapter to put in a tapered steering tube and run a different fork.
Your bicycle s headtube must have an inside diameter of 44mm or larger in order to use any tapered steer fork.
Fitted the headset and the adaptor crown race to the fork and works perfect.