Girlfriend has a pair of High Rollers on her bike, they are about 12 months old but don't see a huge mileage as given the choice she will ride her horse rather than the bike. Prob gets ridden once per month if its lucky and there is plenty of tread left.

Noticed last week that the rear tyre had started to bubble last week, one ride later and it looks like this all the way round one side of the tyre:

And in one place, like this!

It has only done it round one side of the tyre by almost every tread block, the other side of the tyre and the front tyre are completely unaffected.

What are my chances with a warranty replacement?

have you got tubeless sealant in them ?

Yeh Stans

are they using sealant? if so – unless its a maxxis approved one the chance of warranty is limited. There is a letter detailing the same thing in this months WMB

Interesting, looks like the rubber has come away from the carcass. Are they tubeless? How does it look from the inside?

http://www.rotorburn.com/forums/showthread.php?t=174631

http://www.google.co.uk/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla%3Aen-GB%3Aofficial&hs=Ems&q=maxxis+stans&btnG=Search&meta=

delamination caused by stans …..

on most peoples bikes its fine – i go through tires in a matter of weeks but many tire brands state that warrenty is void if used with sealant and maxxis is one !

Tubeless, not looked inside yet. Strange that if its the sealant that done it, its only happened on one side (wheel is stored for weeks at a time vertically rather than on its side so I'd expect it to happen in one place across the tyre. And front tyre is unaffected.

Will have to sneak a read of WMB in the newsagents 🙂

Early Kenda's used to break down like that when using Stans sealent.

Now Kenda do specific sealent tyres.

Sealent is breaking up the rubber. Unless stated above, if it's a tubless tyre then you should claim. If it's std tube then new tyre time.

Well at least it went wrong when she wasn't riding it. Being stranded and walking isn't fun.

Thanks all, we will see what the shop says, if its a no we'll be replacing them with Bonty tyres!

Can heartily recommend Spesh eskar 2bliss as a high roller replacement – £19 each also and sealent ready

Tyre manufacturers say it's the amonia in the solution, Stan's say there's not enough amonia to do this and that it's actually a manufacturing fault where the "layers" of rubber haven't been applied correctly. It only shows faulty with tubeless as with a tube, there's no air pushing the fault layers apart.

As for who you believe, it's anyones guess!