The shim I cut to use the 25.4 handlebars with a 26mm stem wasn’t holding very well, so I picked up a replacement stem with a 25.4mm clamp. A Nitto Technomic stem, 150mm tall – great fit and finish, and it’s installed. The bars are on and the brake levers are reinstalled and positioned as best I can without riding it.
Got out for a short ride, and the stem/handlebar/lever positions are good. Now the mechanicals are finished.
I wrapped the handlebars and finished the ends, but I think the right side ended a little too close to the stem. I have a GUB gps mount that fits on that side of the bars, so I might redo the end. Removing a half inch would give better clearance for the front brake cable.
Barring that change, or even including it if you’re generous, the ST600 is finally ready for the road.