OK , here's a few pics of the trekking bars.
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Yeah , I put a rag over the mirror (some things you can't un-see).
The quill stem is 75mm from the top nut to the pivot , the stem is set at 35 degrees , the stem length is 110mm.
As far as I know , it is a stock 2001 model stem.
As to the weight question , I don't really know , it seems to be about the same (stripped) as my 2016 roam 3 give or take a pound.
Any mountain bike setup will fit the trekking bars , usually the cables will be a bit too long when installed.
The cheap mirror actually works for me in all hand positions (kinda weird) but I like it.
The bars are XLC off of ebay , about $18.00 when I bought them , they are very light bars.
Mick