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Wet patches on my tyres
Hi guys!
This might be another one of those stupid questions, so please forgive me...
I haven't been riding much in the last few weeks and when I was looking at my bike yesterday I noticed that the rear tyre has lost a lot of air and that both (tubeless) tyres (Maxxis Crossmark) have little black spots where the sealing stuff seems to come through?
Is that because the tyres have lots of little tiny wholes and now they are leaking air?
And most importantly: do I have to throw out BOTH tyres? Their tread is still really good and I don't want to chuck them!! 
Any advice would be great!
Thanks,
Carolin
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dont know much about tubeless caro but i know that tyre rubber isnt good at keeping air in for long periods and if you are off the bike for long periods its best to let the air out of them. the tyres should be fine. pump them up and check them in a few hours and they should still be full( unless liam's been sticking pins in them!)
It's normal tyres do have lots of tiny holes in them and the goop can leak through, I guess when you're riding more the dust and bike washing removes it before it's visible.
John.
Thank god!!!
And thank YOU two for letting me know they are ok!
Just because you mentioned it Gaz. How long are the periods of time we are talking about when you should let the air out of the tyres? Not that I am planning a longer break (not longer than a week at a time anyway
) but I would be interested to know.
Thanks again!
is fine caro. if youre going away for a month or two then let the air out. any longer than that then you have to blow the tyres up with your lips and not a pump.
...blow......lips.....?
sorry I had to do this, as someone else did enough posting today I had to comment on this one....
Bernd
i was just trying to confuse the girl! you just have to lower the tone dont you?
Somebody on MTB Oz had a similar issue with a Hutchinson Python that had ben eaten away from the inside by the stans goo. It's a known problem with those (apparently..) and it takes a very long time to happen so not really that much of a problem. Just guessing but if your tyres are very old it might have happened here. If not then ignore this and just pump em up again ;-}
Ta,
Matt.
FWIW my Rush hasn't moved for 5 weeks. Although the tires were a little soft there didn't appear to be anything leaking out. I just pumped them back up and things seem good as gold (well, they haven't gone flat in a day or so - we'll find out when it gets a ride!).
One thing - I store it hanging from arms on a stand, maybe that is the thing, you have yours with weight on the tires, right?
Although in a week, it really shouldn't loose any pressure probably.
As for the 'worn out' question... the Crossmarks grip great when new but don't think you want to let them get too worn. I rotated mine to even the wear out. Dunno why, but for some reason I keep old tires. Some lame dream of maybe using them someplace the ground is fast and rock hard and dry, but doubt that will ever happen.
tar Rob
or in some circles bitumen.
No, no... I think it's Moab you're thinking of, Ev!
moab! xxx xxx xxx
what is that please?
Hi Matt,
)
I too read that post on MTB OZ a while back but I couldn't quite remember what it said and I didn't know what stans goo is (I still don't
My tyres are only 6 months young, or is that old??
I might put it up on the rack then... didn't think it mattered that much, it sooo light
Hey Caro,
Somtimes I find air can leak slowly from the valve on my tubeless, its not uncommon to find a piece of grit stuck in the thread or maybe it needs a little tighten where it meets the rim. I had to replace a valve a few weeks ago...that tiny little thing cost around $15...
-Stans no tubes is so worth it.
Caro, Caro, Caro... <shakes head>
Stans Goo (or Notubes as we like to call it) is a liquid you put in your tubeless tires to help them seal:
http://www.notubes.com/
It stays liquid 'til you run over a thorn or some glass or something, then it gets sucked out the hole as air escapes and the micro-doh-dahs in the fluid block the hole and mean you don't even notice. Well - that's supposed to be the theory.
Another similar product is Slime:
http://www.slime.com/
Or I hear some people even use a mixture of both!
Fair enough
I guess I got confused when read that the stuff 'eats' the tyre from the inside, you just never know!!
Does that stuff has to be filled up, replaced or something after a while or does it last usually as long as the tyre is ok?