The lovely Michelin front 120/70R18 PR2 had run through its tread, so I popped it off and mounted a Dunlop K701. Normally if I get the tire centered on the rim, and a bit of soapy water on the bead, I can seat the tire with a bicycle pump. Not this one, although I pumped until the sweat flew.
Then I tried a local automotive store (Canadian Tire), they have an air hose with a pretty good flow rate. No go, again.
Last choice, a dealer. They took the wheel into the back room, performed their magic to seat the tire and balanced the wheel, all for $25 CDN. I guess I shouldn't always complain about dealers.