bikerpet Posted December 2, 2018 Report Share Posted December 2, 2018 I've just swapped around some tyres between bikes and now find that one rear X11 is loose on the rim and spins and pops the bead. The tyre was on an older style rim with rubber strip (GasGas '05), now it's on a Morad tubeless rim (Sherco '13). It popped the bead on very easily compared to all other X11's I've done, and now pops it off equally easily! I'll probably just put it back on the original rim which it worked on, but I'm wondering if there are any good tricks to get the bead to grip a bit better? I mounted it with soapy water as per my usual technique, but have now mounted it using WD40 having read that WD40 tends to make the rubber go a bit sticky. I'll leave it a day or so before trying it again. I wondered about using a bit of conveyor belt adhesive on the rim as a mounting lube (a rubber contact cement), might try that next if the WD doesn't work. The tyre is older, but very little wear, maybe newer tyres are tighter? Cheers. Quote Link to comment Share on other sites More sharing options...
feetupfun Posted December 2, 2018 Report Share Posted December 2, 2018 With any tyre the rubber goes hard with age. The tyre bead has probably taken on the bead seat profile of the old GasGas rim as it aged. The newer rim may have a slightly different bead seat profile and the tyre bead rubber is no longer flexible enough to deform to the shape of the newer bead seat. If the tyre is the same age as the 2005 rim, it is an extremely old tyre. There are liquids designed to soften the rubber on go-kart tyres that might soften your beads enough to get it to seat and stay seated. I've got my doubts about WD40 softening rubber. I've been using WD40 for years as a mounting lube but have not noticed any softening of the rubber. Another technique would be to heat the beads and rim up just before you pop the tyre onto the bead seats and then leave the whole thing cool down with the seating pressure still inside. Yes, high temperature contact adhesive would work but may make tyre removal interesting. Quote Link to comment Share on other sites More sharing options...
bikerpet Posted December 2, 2018 Author Report Share Posted December 2, 2018 That makes sense. I'm not sure the age of the tyre, I felt the tread and it felt as soft as a recent tyre so figured it worth a go. I'll see if wd40 makes any difference, if not I'll put it back on the GG. Heating is something I hadn't thought of, might give it a go out of interest. On MTB ghetto tubeless setups a wrap or two of tape on the rim seat can work wonders, I may try that too. No doubt longer term the solution is simply a new tyre ?, still if I can get this one to work reliably I don't mind saving a couple of hundred dollars! I suspect the adhesive would be ok getting off, it's not a huge area being peeled at any one time, and alloy typically doesn't stick that well. 1 Quote Link to comment Share on other sites More sharing options...
sprinter 27 Posted December 2, 2018 Report Share Posted December 2, 2018 X11 was sold as tube type and non tube type , tube style has a larger diameter bead Quote Link to comment Share on other sites More sharing options...
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