Might actually be post Trek now when I did some googling. But that means 1 1/8 fork and threaded bb instead of 1 1/6 and klein press fit as @dammit asked about.
Klein made them, but Klein was owned by Trek (from 1995) so some "later" Kleins had MC2 (and usually threaded BB shells)
They were still made in Chehalis, but Trek forced a lot of design compromises.
Might actually be post Trek now when I did some googling. But that means 1 1/8 fork and threaded bb instead of 1 1/6 and klein press fit as @dammit asked about.