All of these wonderful ideas that I hadn't thought of: Remove the valve stem. Use a strap to compress the tire. Use a different method for connecting the compressor to the presta stem (I tried the rubber doo-hicky from J.A.M, and also fashioned my own out of 1/4" clear tubing that worked surprisingly efficiently so I could manipulate the tires easily with my hands).

I now have many more bubbles than I ever did before. I feel like I ought to have a visit from "my little pony" with all these bubbles appearing in my shop. But I would give away all the bubbles and ponies for just one "pop". Just one... is that asking too much? Obviously...



I have now confirmed that I have zero ninja compressor skills. I am truly a beaten man who will have to continue to rely upon the skills of friends. I guess I'll keep the toy compressor and use it for car tires and small nailers.

My hat's off to Fred who can do this with a CO2 cartridge. That's supreme ninja level 10 tubeless skills! I keep dying on level 1.

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Velo Ergo Endo

...time to try a different tire.

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Thus, if we are to understand the world, we should live somewhere between judgement and amazement — Alfredo Lopez Austin

All those bubbles are from the bead and not from the spokes, right? If you got bubbles,there is air in the tire. Recheck the amount of Stan's fluid in the tire and use less soap ,once you get bubbles again, rock the wheel from side to side with the intention of having the Stan's fluid reach the tire bead, don't inflate more than 38-40 psi when sealing the tire. after you get the seal, lay the wheel on its side, preferably over a bucket, each side 5-10 mins.

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"Just stop this walking shit and let's get this done"
Avidtesty (Arch 2019)

Never seen so many bubbles on a wheel. Then again this is coming from someone who had the wheel explode and got Stan's juice all over the garage.

What part of town are u in? I'm in eastlake and could let u borrow my mod inflator.

I can't believe this thread has made it 2 pages. I use a floor pump every time and never have an issue... No soap either. I think I did use soap on my old dh wheelset though. The tire wasn't tubeless and I used a Stan's free ride conversion kit on the rim. I pumped for quite awhile on that one, but it eventually seated and held nicely.

Yes, same here. I have Stans Flow EX rims and Maxxis tires and the bead will sit with a foot pump. It will require some soap if it is the first time...

That picture with the bubbles is Fuckin Great!! haha- what a great picture even got the strap wrapped around that thing.

I'm thinking about giving the whole tubeless thing a go again. Hopefully none of that happens to me.

Success at last! I went to my buddy George's house (he of the fridge-sized compressor), and we spent about 15 minutes with four hands fighting the leaks until we finally got the magic pop. Neither of us have ever seen a tire this stubborn before. The tire seemed to have a natural curl to it which meant it was difficult to get the tire to spread out to contact the bead.

I hope to never encounter another tire as stubborn as this one! I hope you were all entertained by my fumbling.

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Velo Ergo Endo

My first tubeless conversion back in the day was with these same tires, and it was a BITCH! Every tubeless tire (and non UST tire run tubeless) I've mounted since then has been super easy to mount.

I don't compromise with my tire and wheel tubeless interface. Have had it with ghetto or rim strips. I prefer UST only.

All my setup have been easy with floor pump until Hutchinson introduced what is now becoming a pain in the ass standard -Tubeless Ready Casing. It's basically a UST bead with standard porous casing. It requires me to use my air compressor for the lighter weight/thin casing Tubeless Ready tires on top of the time required for the sealant to seal all the holes in the casing to make it air tight.



This latest Tubeless Ready tire took about 18hrs to for the sealant to seal (same with the DH casing version on my DH bike). The bead lock is phenomenal. So good it made me swear to God's God to remove it when I had to. So for those about to venture into Tubeless Ready (Specialized, Bontrager and others offer the same Hutchinson TR tech), get an air compressor (especially if you're not running UST wheels) and add a bit more sealant than usual and be patient. Just keep reinflating, spin to spread the goop inside, then inflate some more. I'm gonna stock more proper UST tires due to this..

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Department of Good Times

Thanks ozzer. I can find a couple of UST 29er tires available (not very many), and also a couple of UST rims. When I built up the latest set of wheels, neither of those were available. I'll keep this UST idea mind when I need new wheels.

Do you need to match UST tires to UST rims?

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Velo Ergo Endo

Not necessarily but I'm sure it helps. Some other tubeless but non-UST tire brands just have lesser QC over their bead construction than others like the durometer they use for the bead and the seamless lines which result in a much more secured air/bead lock. All brands seem to follow the same convention as far as the ideal dimension or height of the bead to promote proper bead lock onto the UST rim maybe except for Kendas. Kenda grades their durometer based on the rice paste they use with their rubber compound.

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Department of Good Times

Glad to hear you got the tire to mount.

I've also found that when mounting a new tire, it can help to put a tube in it, inflate and let it sit overnight and then mount tubeless the next day. That, and follow the instructions here:

http://vimeo.com/34566369

Kind of like inflating a sew-up mounted up on a rim with no glue and then deflating it and gluing it on the rim the next day . . . sorry for that flashback to a dark time in my roadie past . . . .

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A bicycle is a splendid thing.
~Ernest Hemingway

Yes, that's what I do too. I'm using non-UST tires on UST rims.

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Thus, if we are to understand the world, we should live somewhere between judgement and amazement — Alfredo Lopez Austin