mavic crosstrail tu...
 

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[Closed] mavic crosstrail tubeless question. how the **** do you get inflated?

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Having managed to do tubeless with stans rim strips on mavic non ust rims, on crests and on roval rims [stans copy] numerous times using specialized 2bliss and standard schwalbe tyres without too much fuss, I'm finding it impossible to inflate a 2 bliss tyre on a set of crosstrails.

I've warmed the tyre to make it more supple, removed the valve core to increase air flow and put washing up liquid suds round the rim [ using a detergent bottle filled with suds only to get a good coating.

All my usual tricks but to no avail.

Any tips?

p.s. I love stans. As usual, a bloke in his shed shows a company with a budget running into millions how to do it!


 
Posted : 02/04/2013 2:43 pm
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I struggle abit with my Crosstrails too . Try sticking in a tube and pumping it up to 40 psi , leave for 24 - 48hrs . Remove tube and remount . Put your full amount of Stans in before attempting to pump up . Spin wheel around in a flat plane ( horizontally) first , then pump like mad, squeezing around the valve area.


 
Posted : 02/04/2013 3:41 pm
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update;-

Tried inflating a srecialized captain 2 bliss on the back, unused tyre but 2 or 3 years old, [came on sisters bike but was swapped out immediately.] No joy, think the beads too loose, [air escaping from where the valve is, not even a hint of the tyre catching]

Then tried a newer purgatory 2 bliss on the front , [slightly different graphics, maybe they make them with tighter beads now] and it went up instantly. caught the bead on the first stroke of the pump! just like when I've used stans and roval rims.

So apologies mavic for my earlier comments! Although I must say I think the stans bead shelf idea is much more tolerant of variable bead tightness, I've managed to get any tyre I've tried up and running in a jiffy with them, including 5 year old knackered racing ralph evo's without any hassle what-so-ever. I can see the bead-lock design on UST rims is a great idea in principle, but it seems dependent on a perfect tyre match.

I'm going to try a bodge for the meantime by putting a strip of tape round the rim until I get a different back tyre. Might sound daft I know, but having done a few rim-strip conversions before on standard rims with no great bother, [except for having to use a more vigorous pumping action]


 
Posted : 02/04/2013 4:33 pm
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Tube in, blow it up to seat on rim, remove one side only and take tube out, inflate anow it should seat easily.
Then core of valve out or open up a little bit of the tyre bead to pour in the "Gunge"

Works just done it


 
Posted : 02/04/2013 4:37 pm
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Update No. 2

One strip of electricians tape and bingo! tyre went up in an instant. Heard the satisfying sound of the bead popping onto the rim as well, so the tape doesn't seem to be interfering with the bead lock on the rim either, seems secure, so I'll think I'll run it as it is, [certainly more secure than a rim strip conversion, where the bead doesn't lock and requires the air pressure to keep the seal. I'm a bit nervous of running lower pressures on conversions, particularly on the front]

Chuffed now, as I've always prided myself on being able to get any tyre rim combo to go tubeless, [as long as the tyre will fit on the rim in the first place!]

Ohhh Yes. [as Churchill would say!]

Thanks for tips all. Did it before I read your tip Dales rider, otherwise I would have tried that, though me-thinks the bead was a bit too loose and would have struggled to stay on one side of the rim whilst removing other bead. Next time I'll give it a go if needed, though with tubeless I don't tend to need to change or remove the tyre till it wears out or gets a sidewall slash, I just top up by removing valve core and using an injector.


 
Posted : 02/04/2013 5:07 pm

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