I had the same issue on my GS1000, turned out to be a sticking caliper piston, it would not return after being applied and caused the wheel to not want to turn freely.
I was changing wheels from one bike to another when it happened, but thought it was something I caused so took a while to figure it out.
Try it without brake pads and see if the rotor is running true in the center of the caliper.
2013 DR 650 Grey, 1981 GS 650E Silver,
1980 GS1000ST Blue & White, X2
2012 DL650 Vstrom Foxy Orange, Daily Ride
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