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Got a tricky tubeless set-up on my hands for the road - a mavic open pro disk rim. Recall it being a struggle first time I did it a year or so back, and I'm now replacing the tyre with a conti 5000 that normally go up easy but not here. Tyre seems a bit stuck on the rim bed, even with soapy water it's not moving onto the side to snap on.
Wondering if an extra layer of tape would help? Not something I've ever tried as a problem solver, what sort of situation does it help?
If the bead fit is a little baggy, which it sounds like it is, then yes.
I always do two layers as standard, just to be sure of a good seal. So if you only do one then I'd say yes - it may help most of the time.
This sentence
Tyre seems a bit stuck on the rim bed, even with soapy water it’s not moving onto the side to snap on.
sounds to me like it's too tight, not too baggy in which case thinner tape might be the solution.
Is it inflating at all OP and just not pinging into place, or can you not get air in at all? I'm sceptical that a few hundredths of a mm of extra tape makes any difference to tubeless setup. The most stubborn one I had recently, (wouldn't inflate even with my fire extinguisher inflator) needed an inner tube to seat one bead then the second one worked tubeless.
If the bead fit is a little baggy, which it sounds like it is
Tyre seems a bit stuck on the rim bed, even with soapy water it’s not moving onto the side to snap on.
Errmmm... That doesn't sound to me like "baggy" but rather "too tight"...
Fit it with tube onto any other rim and try to stretch. Warm it before fitting, that generally helps fitting stubborn tyres...
Cheers!
I.
Yeah it's more tight than baggy, but wondered if it was one of those counter-intuitive things where the extra tape might spread the tyre wider or something lke that.
Inner tube is worth a go so will try that next.
Sorry Garry - in that case the tyre was loose, that's a technique to stop the air rushing out as fast as you can put it in.
How much pressure are you putting in them to try and get that initial seat? I've had to take MTB tyres up to 50 psi before now to get the final ping. I'd go to 100 psi on road tyres without much concern, (narrow tyres and rims have much higher pressure ratings) then deflate to whatever your target pressure is.