I've had the same symptoms from catching the tube between the bead and rim 
and it's not always been an immediate reaction. Sometimes a few hours have 
passed.  I'm a little gun-shy around newly changed tires now. I always 
slightly inflate the tube and often used a narrower tube than recommended 
to mitigate the risk of pinching. Ear defenders are useful at the tire 
changing station.After inflation, my habit is to mostly deflate the tire, 
then work the bead around both sides checking visually that the tube is 
clear of the bead. A bright rim tape that contrasts with black helps that.

I've also popped tubes inside the tire by over-inflating which has unseated 
the tire, when trying to stretch a close-fitting and stubborn tire, but the 
pressure needs to be super excessive.  A loose rim/tire combo could 
certainly pop off with relatively modest over-inflation.

IanA/Canada

On Friday, January 13, 2017 at 7:10:24 AM UTC-7, Kevin Lindsey wrote:
>
> So I inflated the 50mm Schwalbe Marathons on my Hunq to 60 psi (rear) and 
> 40 psi (front) last night and wheeled it into the kitchen in preparation 
> for what would have been my morning commute.  About twenty minutes later, 
> there was a deafening "bang" from the kitchen; I honestly thought a handgun 
> had gone off or something had detonated in the microwave, and my left ear 
> was ringing for a half hour afterward.  Long story short, the Schwalbe 
> inner tube on my rear tire had popped, shredded, and actually blew the tire 
> off the rim; anyone who uses Marathons knows how hard it is to get those 
> things on the rim in the first place, and it's sobering to think of how 
> much energy must have been released to unseat one.  Fortunately, aside from 
> screwing up my commute and throwing my dogs' digestive systems into 
> reverse, however, there was no other apparent damage.
> Anyone know generally what causes a tube to blow up like that?  It wasn't 
> over-inflated, probably only had fifty or sixty miles on it, was the 
> correct size for the tire, and generally should have lasted for several 
> hundred miles.  My son has had this problem with some Specialized tubes 
> recently, but the Schwalbe products are generally of a higher quality, but 
> now I'm wondering whether there's a QC issue at the factories in, I assume, 
> China.  
> Any thoughts would be appreciated.
> Kevin
>
>

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