Breaking a tyre bead

facade wrote: most will simply knock the tyre off, change the valve then put it back on & rebalance and charge about £10.

It isn't even needed to take off the tyre, just break the bead to get at the valve.

I know

They will do it how they were taught though, it is a lot easier to cut the old valve off and fit the new with no tyre rather than keep pushing the tyre in, and no trouble to use the tyre machine to get the tyre off.

If you can find an amenable one, he can just push the outside off, cut the old valve and fiddle the new one in so it won't need rebalancing.

facade wrote:
If you can find an amenable one, he can just push the outside off, cut the old valve and fiddle the new one in so it won't need rebalancing.

That's how he did the last one!

No eBay APP ID and/or Cert ID defined in Kunena configurationAnyone used one of these? This is the kart size but is supposed to do 15" and the seller says (but then he would! ) that it will break 15" tyre beads no problem.


There are larger ones as well.

If only.

Finally did it. Used this but what a game. For a start the chisel like thing (encircled) is curved but to a different radius than 15" rims, probably 13" ans was no use at all so it would not shift it. It kept slipping from the rim outwards off the tyre. I eventually did it with a big block of wood underneath it. It took all my weight on the bar and then some. It needs something more like the shoe on a hilift jack which I think I will fabricate using some 2x1 steel tubing.



While it was being stubborn the slats on the pallet were pulling up with the nails ripping out so had to reinforce that. Once that the bead was broken at the valve it was kid's play to remove the old valve and replace it.
Tyre soap I used was a Morrisons block of their cheapest soap I had left in a container of water for a few days.