Originally Posted by fietsbob

yes I removed the star nut, (you can drill the inner edge, or the center comes apart if the pull up,
is strong enough [steel steerer] nut retained in star with aluminum 'rivet'..)

the Clever bit, is not shown, the center bolt, .. custom manufactured for this part,
it has a 6mm thread inside the 6mm hex, so once the quill wedge is tightened,
the top cap bolt pulls against the internal thrad, to do the headset adjustment, as per usual for threadless forks.

the rings at the top are keyed shims the stem grips around, you use all or as many as you wish,
to have a choice of how much taller you are making the steerer..

Originally Posted by calstar

What make stem is that, is it 35 degrees rise? thanks, Brian