anyone run tubeless...
 

[Closed] anyone run tubeless without sealant?

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Ive got tubeless rims and TL ready tyres that are fully inflated - but no sealant at the moment! what do you reckon my chances are of getting round a ride without any flats! daft question i know, but just wondered if anyone runs tubeless regularly without the sealant?

 
Posted : 16/09/2011 7:33 pm
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I reckon you have about the same chance as you would running tubes

 
Posted : 16/09/2011 7:34 pm
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yeah thats what i was thinking - gonna take some tubes anyhow 🙂

 
Posted : 16/09/2011 7:36 pm
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I ran UST rims and tyres wihtout sealant for ages. Just take a tube.

 
Posted : 16/09/2011 7:49 pm
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I did the same until I got a thorn puncture that also holed the tube I put in...now I use sealant.

 
Posted : 16/09/2011 7:57 pm
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Back in the day (like 10 years ago) mavic actually said UST was not to be used with sealant - I think over concerns that some sealants could corrode the tyre.

So no sealant is fine. It does seem to generally maintain the bead sealing to the rim though - cuts down on mini air burps or something similar.

 
Posted : 16/09/2011 8:33 pm
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yeah that was a concern GL, but i run quite high pressure anyway (35psi-ish!)soim hoping that wont be an issue!

 
Posted : 16/09/2011 9:32 pm
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Why would you [i]not[/i] want to run sealant?

 
Posted : 16/09/2011 9:38 pm
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i just dont have any at hand! i will do eventually

 
Posted : 16/09/2011 9:53 pm
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Tubeless Ready tyres are normally designed only for use with sealant... But it might be fine, who knows?

 
Posted : 16/09/2011 9:55 pm
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I ran tubeless and ran without sealant and got a flat 🙁

 
Posted : 16/09/2011 10:44 pm
 grum
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I've run mine for ages when the sealant has all dried up.

 
Posted : 16/09/2011 10:49 pm
 mboy
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I've run mine for ages when the sealant has all dried up.

That's slightly different though, as the sealant has already done a job by this point. Only thing it isn't going to do is fix a new thorn puncture, but it's already stopped the tyre being porous.

I was a fairly early adopter of UST, around 2003 I think, and ran UST without sealant for a while as was yet to be convinced of the need for it. A couple of thorn punctures put paid to that, and when I realised just how heavy proper UST tyres were (fine for DH, less so for XC), I decided lighter tyres and sealant was on the whole the way to go...

 
Posted : 16/09/2011 10:58 pm
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I was a fairly early adopter of UST, around 2003 I think, and ran UST without sealant for a while as was yet to be convinced of the need for it. A couple of thorn punctures put paid to that, and when I realised just how heavy proper UST tyres were (fine for DH, less so for XC), I decided lighter tyres and sealant was on the whole the way to go...

+1

 
Posted : 21/09/2011 2:45 pm
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Similar to PMJ and mboy, I got some very early Crossmax USTs in 2001, there was only 1 UST tyre, the idea of sealant didn't really exist. I got few flats, but tyres were heavy. Had a couple of tyres develop tiny leaks and it was infuriating trying to find out where they came from. I nearly trashed the rim putting 80psi into a UST tyre which subsequently exploded, whilst looking for a leak!

Then went to an 'Eclipse' system about 2003 with non-UST tyres and sealant, loads more faff, but saved tonnes of weight. Then got Stan's rims. That was a revolution.

I'd not run a non-UST tyre without sealant and expect any longevity. But all that'll happen is you'll puncture, so take a tube, and see what happens.

 
Posted : 21/09/2011 2:53 pm