For what it's worth, I didn't bring spare bake pads, either. Nor were they worn out when I finished. I did bring some degreaser (and cleaned the drivechain about once a week), some grease, spare brake/shifter cables, a couple spokes (both drive/non-drive side), patch kit, and two unused tubes at all times.
The only "serious" mechanicals I had were 1)after 5 days straight of torrential rain in the Rockies, my rear hub (non-drive side) started rusting out, so I had to replace the wheel in Saskatoon, and 2)coming down Rogers Pass, my jockey pully (rear derailleur) popped off, so I just reguided the chain differently until I got to Golden BC, 70km away.
That, and a couple flats.