i boil them if i need a speedy removal, if not then i use acetone. I fill up a shot glass of acetone, pop in the middle of an airtight container surrounded by the wheels i need rubber removed from (i cut most of the tyre off and remove inserts first), pop the lid on, then i leave the container out of harms way up on top of a kitchen cupboard. The fumes in the container soften the glue nicely
