Answered Can't get my tyre back on

[pegnose]

Help! I can't get the tyre back onto my RaceFace AR 40. It is a Maxxis Rekon 27.5 x 2.8 3C EXO TR.

I went tubeless on the front wheel about two years ago. Back then it wasn't an issue. I went as far as I could with my hands and the rest just popped into place via air pressure. Back then I posted a question about getting the tyre off (I wasn't familiar with the concept of TR components). ?

Today I tried ~2h on the back wheel. Had a flat one and decided to go TR there as well. But I can't get far enough for the air pressure trick. Thing is, the rims are assymetric. I "opened" the tyre on the side where these little dents from the spokes (in the pre-installed rim tape) are closer to the edge. So I cannot for the life of me get the tyre to clear all those indentions at the same time (in order to use air pressure).

How the heck do you do this?

 

[steve_sordy]

The dents are caused by air pressure on a thin layer of rim tape.

Remove the dents by putting in an extra layer of rim tape, stretched tight.

Even with a high volume, high pressure device like an Airshot, those dents can suck the life out of your efforts.

 

[pegnose]

Thank you, Steve. So air pressure is generally, how you do it?

 

[steve_sordy]

I use an Airshot, 100% recommended.

Airshot Tubeless Inflation System | Sigma Sports

Shop the Airshot Tubeless Inflation System online at Sigma Sports. Receive FREE UK delivery on all orders over £60 and easy returns!

www.sigmasports.com

There are other devices that doe the same, even Ghetto ones using Coke bottles and Gaffer tape.

 

[pegnose]

What do you do with the Coke bottle? Jump on it? ?

 

[KennyB]

As a last resort I fit the tyre with an inner tube, to seat the beads, then get one side off, remove tube and fit valve. Job is at least half done. If my Specialized Blast tubeless seater can't reseat the bead, I'll use a CO2 canister (just let the CO2 out and fill with air as it can react with STAN'S sealant).

 

[pegnose]

Yeah, I thought about that (fit with tube first). Get the one side off where the dents are further away from the edge. I mean, the last time I did it with exactly the same means: my hands and my trusty pump. And the whole process took only about 20 minutes.

 

[Gary]

Soap the tyre beads.
Washing liquid and water sponged all the way round both tyre beads.
not only will it help the bead move over, it'll contain the air better increasing the pressure to pop/blow the tyre into place on the rim

 

[RustyMTB]

The ghetto Coke bottle thing really does work, the idea is to fill the bottle with 60 ish psi air pressure through the Presta on the right & then release it in one go via the tube on the left of the pic which has a clamp of some kind & it blows the tyre onto the bead. I've had success with it on awkward tyres. Remember all you need is to get the tyre onto the bead & then you can do the rest with any old pump.

 

[pegnose]

Wow, this is craftsmanship!!

 

[blueglide]

Check this YouTube video out.


I switched from Stan's to Orange Stuff a couple months ago. I didn't have any trouble inflating my rear 27.5 with my Bontrager TLR Flash Charger pump. Could not get my front 29 to inflate. Finally, I manually seated most of the bead with tire irons (as shown in video) and it worked perfectly.

 

[RustyMTB]

More recently, I bought a cheap weed sprayer, removed the lance & put a brake bleed clamp on the hose. This thing is completely reliable. I can pump it up to about 70psi before it starts venting through the relief valve & you don't have to keep a garage that makes you look like a crack head.

 

[MadTurnip]

More recently, I bought a cheap weed sprayer, removed the lance & put a brake bleed clamp on the hose. This thing is completely reliable. I can pump it up to about 70psi before it starts venting through the relief valve & you don't have to keep a garage that makes you look like a crack head.

View attachment 70865

I was considering this awhile back, as I have one sitting around. But the stated pressure on mine is 2 bar (29 psi). And I feel the pressure relief valve opens quite quick when hand pumping (although unmeaured). Is there a stated maximum pressure on yours?

 

[RustyMTB]

No idea, I can get it to 60-70psi by the track pump before the relief valve starts clucking. These things are generic products made in China, they'll all be much of a muchness but the important thing is not trying to inflate the tyre in one go, all you're after is to get it to seat on the bead. If you can release air fast enough, then you're in business.

 

[MadTurnip]

No idea, I can get it to 60-70psi by the track pump before the relief valve starts clucking. These things are generic products made in China, they'll all be much of a muchness but the important thing is not trying to inflate the tyre in one go, all you're after is to get it to seat on the bead. If you can release air fast enough, then you're in business.

Just went and made one there. The 2 bar (29 psi) limit on the side. The relief valve opened at 20 psi. Only a tiny bit, might be able to get it to 22ish. My one is 2l in volume. A reasonable amount of air seems to come out of it better than a floor pump thats for sure, would rather it could go up to 50 psi though. The container I have no doubt can do 50+ psi as I can stand on it and its undamaged. Putting a finger over the relief would allow a higher psi to be achieved, maybe a small bit of tape.

 

[RustyMTB]

They are sturdy, so find a way to block up the relief valve is what I'd do.

 

[#lazy]

If you’re struggling to put a tyre on then you should give up cycling imho

 

[emtbPhil]

soapy water
then take your floor pump, disconnect the hose, put the hose bit on your valve and connect the other end to your car tyre
pop pop pop - done

no idea why people piss about with expensive water bottles

 

[steve_sordy]

They are sturdy, so find a way to block up the relief valve is what I'd do.

Err, sorry to sound like Mum, but there is a safety valve for a reason.
You could keep pumping it up, each time more. You may be lucky and find a pressure you like that doesn't blow the container. But you may be unlucky and find the burst point. Having to wash your kecks may be the least of your problems.

 

[blueglide]

Kecks??? I get an English lesson every time I'm on this forum! ? but I haven't used knackered yet here in the States.

 

[steve_sordy]

Kecks??? I get an English lesson every time I'm on this forum! ? but I haven't used knackered yet here in the States.

How about "bollocks!"? Many years ago, British comedian Jasper Carrott claimed that it was an unused swear word in the USA.

 

[emtbPhil]

Err, sorry to sound like Mum, but there is a safety valve for a reason.
You could keep pumping it up, each time more. You may be lucky and find a pressure you like that doesn't blow the container. But you may be unlucky and find the burst point. Having to wash your kecks may be the least of your problems.

Reminds me of the guy who had an issue with the bottom spring plate on his car shock absorber coming loose so welded it up, with the shock full of oil.

Like WWII shrapnel

 

[steve_sordy]

Kecks??? I get an English lesson every time I'm on this forum! ? but I haven't used knackered yet here in the States.

I believe that the word knackered came from the times when old and tired out horses were taken to the "knackers yard" to be put down and disposed of. Hence the word "knackered" meaning worn out, done in, done for, very tired etc. It is unfortunate that "knackers", slang for your bollocks, is so similar. I have no idea why.

Unless of course it is because you are knackered after being well hit in the bollocks!

Extract taken from the Urban Dictionary.

knackered
spent, near death.
Origin from 'knacker's yard' where one took old horses to become pots of glue.
On my feet all day and I'm knackered.
by Quas1 September 11, 2008

Urban Dictionary: Knackered

Also from the Urban Dictionary "Bollocks"

Urban Dictionary: Bollocks

14th Century (as 'ballocks') English term which has grown numerous useful applications within today's language: 1. Term of exasperation, often at having made a mistake. 2. As a plural noun, the bollocks are the testicles. 3. Exaggerated truth or blatant lies. 4. Unfathomable rubbish; corporate...

www.urbandictionary.com

 

[conman]

How about "bollocks!"? Many years ago, British comedian Jasper Carrott claimed that it was an unused swear word in the USA.

I used to live in Colorado and a mate of mine got "BOLLOX" for a personalised number plate on his car. On the application form he put it down as a childhood nickname.

 

[blueglide]

I believe that the word knackered came from the times when old and tired out horses were taken to the "knackers yard" to be put down and disposed of. Hence the word "knackered" meaning worn out, done in, done for, very tired etc. It is unfortunate that "knackers", slang for your bollocks, is so similar. I have no idea why.

Unless of course it is because you are knackered after being well hit in the bollocks!

I have no idea what bollocks means...or knackers!! ? Are we talking balls here?? I need to take a Rosetta Stone course to understand you guys! Lol

 

[steve_sordy]

I have no idea what bollocks means...or knackers!! ? Are we talking balls here?? I need to take a Rosetta Stone course to understand you guys! Lol

See the Urban Dictionary in post #23 above

I believe that there is a US version, but the Brits version is the first and best. Look up "snurging"

 

[emtbPhil]

Christ even I had to look that up... and I wish I hadn't

 

[pegnose]

Wow, this is craftsmanship!!

Check this YouTube video out.

Thanks, I will!

 

[pegnose]

Guys, It couldn't have been much easier. I seated both sides with a tube, took off the (MUCH easier) side and was able to use my floor pump to reseat that bead no problem. *facepalm*

The rims are asymmetric and the "easier" side (more room from the spokes) is not as steep, of course, and the bead easily clears the spoke dents. The tyre needed just a little nudge (and to make sure both beads were seated where the tyre stood on the ground) for the pump to grip. Also, my TR valve maybe wasn't as firmly seated as it should've on the first try.

I ordered an AirShot anyways, or the Schwalbe pendent, that is. It's a little cheaper. Next time I will TR like a boss.

Guys, did I tell you how great you are, yet? There are forums on the webs where nobody gives a sh*t. Not here, that's for sure. Thank all of you!

 

[emtbPhil]

Glad you got it sorted!