Originally Posted by revchuck

I've been running latex tubes for a few months and generally like them. But I've noticed when changing tires and re-inserting the tubes that they seem to be a bit bigger than when new and can't be inserted without a small fold somewhere on the tube. I've had two flats with these tubes (Vittoria) and the holes seem to be where the tube has folded rather than from a puncture. This has never been an issue when using butyl tubes, including the extra-thin ones. Dousing them with baby powder hasn't helped.

Is this a characteristic of latex tubes, or am I just holding my mouth wrong when I do this?