Maybe? I can't see them stretching much like that though, as once the bead is over the rim it will happily go back to it's natural size. Plus I don't have a spare set of wheels to test that out on sadly.
Merlin have tubed type, but they're just as tough to get on initially. Give em time, they do stretch out a bit. Just take 2 half decent tyre levers when you go out for a ride.
Maybe? I can't see them stretching much like that though, as once the bead is over the rim it will happily go back to it's natural size. Plus I don't have a spare set of wheels to test that out on sadly.