With one of these - even the meanest, nastiest tire/tube can be hauled-up and deposited into the rim of the most cruel, unforgiving rim. Only problem is that it's a bit large to carry. VAR makes one that's smaller and light-weight, but they are hard to come by - look in the UK if you want one.

These work by attaching to the rim on the side that you do manage to get one bead onto, then it straddles the rim and grabs the free bead. Then pulling it back towards the side you have mounted pulls the bead up and into the rim.

Magic!

http://www.jensonusa.com/store/produ...e.aspx?sc=FRGL