Okay, I've answered my own question now: the 20" tube retains its shape without the tyre in place, so it stays there while you put another tyre over the top. Evidently, the pressure of inflated tyres over time is enough to press the tube strip into the rim. It stays in place and you simply reuse it.Kalgrm wrote:The one thing that is concerning me now is what happens when I want to replace my tyre? It looks like I'll need to buy another 20" inner tube each time a new tyre is fitted, since the current inner will pull inside the rim when the tyre is removed. Ah well, cross that bridge when I get to it, even if I have to walk across it.
Cheers,
Graeme
I found this out a few days ago when I replaced my old worn rear tyre with the front and put a new front tyre on.
And a good thing I did too. The front tyre was completely dry (still moist, but no sloshing of sealant), with a thin layer of dry latex around the whole tyre inner. The rear still had a dessert spoon or so of thick sealant (reduced?) and a nice knob of latex about the size of a golf ball (not shaped so nicely though).TooLongLegs wrote:are you saying Graeme that you put over 200ml in each wheel?...stans I think i put less thsn 50 mls?.
I've only used about 80ml in each tyre this time, so we'll see how that goes over time.
Cheers,
Graeme
(PS - Anyone in Perth want to try tubeless? I've got two spare 20" tubes (Schraeder) and more than enough sealant to share. It'll cost you a total $10 for the tubes.)