Brighter-Lights Posted May 12, 2009 Posted May 12, 2009 That's a separation in the thread. I've encountered it many times when I worked in 'n fitment centre before. Usually, it happened mostly on taxis and cars doing lots of gravel road. The tyre is pumped too hard, or takes a very hard knock and the bead / plies start stretching, creating a bubble. Tyres with separations WILL burst eventually... I've seen it 3 times on MTB tyres before... Two were samples I tested... appeared like the tyre wasn't seated properly, but they were brand new, and seated properly but had a 'S' shape in one section... could even feel the bike bouncing while riding... The other was a CrossMark LUST and I know the guy (203cm and 120kg) pumped those tyres over 4 bar... I doubt that the stans or sealant could've started the damage. Lots of people have been complaining about blistering, and I've seen photos of it, but I've gone through about 20 tyres the past 4 years and never had a blister problem with any kind of sealant. I think you had a bad tyre and the plies separated after use and abuse... Impressive that the tyre held pressure and didn't blow off... wow! Brighter-Lights2009-05-12 16:30:00
GoLefty!! Posted May 12, 2009 Posted May 12, 2009 I am quite confident that this damage is exaggerated by the presence of ammonia based sealants.
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