This is a great way to debead a tire at home:

Clamps are good for on the road, I carry this clamp and these boards in the bottom
of one of my saddle bags. I thought it was a lot harder than the previous way, but
you can't carry a 2X4 and a stud wall in your saddlebags

...

The boards are real important when using a clamp, both for actually getting it to work,
and to spread the load from just the clamp points of contact - it could really tear up
your sidewalls...

I changed out numerous Valkyrie tires with my wimply dirt-bike tire irons. Bleggh. Studly
tire irons make all the difference.

-Mike "don't google rubber lubricant"