If you end up going the adapter route and you have no need for that stem, I would be interested in taking it off your hands. Sturdy 1 1/8" quills are as scarce as hen's teeth these days.
Originally Posted by
Yo Spiff
1 1/4", actually, if you are talking about steerer tube size, which would take a 1 1/8" diameter quill. (Stem/steerer tube sizes tend to confuse the heck out of me) I have a 1 1/8 stem (1" quill) in there with a shim to fit it to the larger steerer tube. I had a 1 1/4 threadless adapter but I gave it away with the Trek as an enticement to sell it. I'll buy another if I decide I need to.