Tubeless troubles.

booktownman

I did a ghetto tubeless job on my back wheel - Maxxis Advantage on a Mavic rim. All went smoothly, the tyre inflated easily with Co2 and I rode the thing for a month or so, no bother. It went flat the other day and no matter what I do I just can't get the thing inflated again, Co2 just blows out the sides.

Any tips folks? I've stuck a tube back in for now - might that give the tyre the form it needs to bite on the rim?

Thanks in advance,


BTM

mrmonkfinger

booktownman wrote:

Co2 just blows out the sides.

through the sidewalls?

or

around the bead, cause it is not sealed to the rim?

pilch

You might have to re-ghetto it, sometimes the bit of tube that gets trapped between the bead & the rim can move once the tyre goes completely flat and breaks the seal... plus check the tyre bead for a build up of latex.

cooldad

Or leave the tube in. Simple.

cloudynights

or get no tubes kit,easy

booktownman

Thanks for the advice folks.

Air is blowing out the gap between bead and seal, not sure why it suddenly won't seat.

As for the tubeless kit - I looked at it but it basically looked like a ghetto kit in a pretty box with a £50 price tag, so decided to go DIY!

I've got a tube in now, but some more co2 is on the way, I'll have another go in the week.

Cheers,


BTM

sanchez89

the problem you describe is what has happenend to the Nobby Nic on my front wheel.

the bead of the tyre has 'stretched' slightly and is now a tiny bit bigger than before, i couldnt get the tyre reinflated properly on my crest with my track pump because as quick as i pumped air in, it came back out from between rim and bead.

the best way to reseat it is to use an air compressor, you need a big slug of air quickly to spread the tyre out and create a tight seal against rim.

from what i have read, Maxxis Advantage seems to have a looser fit than other tyres so people do struggle to seat them properly.

booktownman

Thanks for all the advice folks, I'll give it another go when I've some spare maintenance time. I thought maybe building up the inside of the rim with rim tape might help, we shall see...

BTM

allthegearnoidea

i had it the other week with my tubeless tyres on tubeless rims, popped a bit of the beat to puit some more stans in and couldnt get it back on, ended up at a mates unit where he has a Huge compresser (part worn tyres and alloy wheel repair place) and took a couple of minutes with the compresser to get it seated properly! - with schrader adapter on the valve, since then has been fine, have also sussed out since that my spoke key has a slot thats pretty close for a valve core remover! ;-)
if your using co2 cartridges you'll prolly blow through the lot before you get it seated! there was a way of creating your own mini compresser with a 2L bottle, a bit of clear tubing a small clamp and a pair of presta valves, basically, drill 2 holes in the lid and fit the valves, remove the core of one, fit tubing over it and secure it, kink hose and clamp, inflate the bottle to 60psi ish+/- and connect tube to valve, unclamp and all pressure should Shoot out into the tyre!

bennett_346

I use tubes.

mrmonkfinger

allthegearnoidea wrote:

there was a way of creating your own mini compresser with a 2L bottle, a bit of clear tubing a small clamp and a pair of presta valves, basically, drill 2 holes in the lid and fit the valves, remove the core of one, fit tubing over it and secure it, kink hose and clamp, inflate the bottle to 60psi ish+/- and connect tube to valve, unclamp and all pressure should Shoot out into the tyre!

This.

Solves 95% of seating problems, costs the square root of nothing, and takes about 30mins to put together.


http://www.youtube.com/watch?v=ePbjM6wQ1I8

giantAstax

booktownman wrote:

I did a ghetto tubeless job on my back wheel - Maxxis Advantage on a Mavic rim. All went smoothly, the tyre inflated easily with Co2 and I rode the thing for a month or so, no bother. It went flat the other day and no matter what I do I just can't get the thing inflated again, Co2 just blows out the sides.

Any tips folks? I've stuck a tube back in for now - might that give the tyre the form it needs to bite on the rim?

Thanks in advance,


BTM

I seem to recall with the Stan's kit the key is making sure that you liberally coat the bead of the tyre with a water/washing up liquid solution. First time I forgot and couldn't get it sealed even with CO2. A quick re-read of the instructions and it worked first time with a track pump. Might help you?

Love the Ghetto 'pop bottle' apparatus though

leaflite

Excuse me if im being a bit thick, but when you remove the hose won't all the air escape from the wheel in a very loud and terrifying manner?

allthegearnoidea

Shouldn't do as you'll have the valve core in the valve on the wheel,
It would do if you removed the wheel valve core just to Seat the tyre,

mrmonkfinger

leaflite wrote:

Excuse me if im being a bit thick, but when you remove the hose won't all the air escape from the wheel in a very loud and terrifying manner?

It's really not that terrifying. Maybe someone standing nearby looking the other way, would find it a bit unsettling for a moment.

But, yes, you do have to be a bit quick about getting the valve core back in.