Having successfully spread the rear triangle of my old Fairdale Coaster to 130-ish mm (still gotta align the dropouts), I went to start on the same for my recently acquired 1990 Trek Antelope. I had measured with calipers with the wheel on and thought I’d need to widen the frame to fit a 130mm hub (so I could use an HG freehub wheel). I took off the rear wheel and re-measured the dropout spacing just to be safe (measure twice and such), and to my delight they’re already at 130mm! No cold-setting required! This will make my 650B conversion all the more straightforward.