.....We discussed this at ES.....The Triumph wheel is unique in that it's not a 'drop center' wheel. Drop centers allow the bead, when it's grip is removed from the shoulder, to move into the 'drop center' area and allow the opposite bead to be removed. That's not the case with the OEM rim, so, at least in my opinion, it would be easier to cut the old tire off with a cutoff wheel (being careful at the sealing bead) and mount the new tire by hand with tire irons and plenty of rim lubricant.....Something shops don't do today. People prefer mindless machines over the personal touch.