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Originally Posted by hud 91gt
^ I just bought one of those last night. Will it at least get you home, or is it after repetitive pumps that it breaks? I don't want to carry a bunk tube around with me. lol
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They'll work. And for some people, they work for over 1000km but I think the recent batch (here in Vancouver anyway) have quality problems with the valve stems itself. I returned them today and the girl behind the counter said they've been seeing a lot of returns lately. They seem to break after repeated pumps. I don't think I'm doing anything wrong but the stem just goes out on its own without me touching them.
I returned the two that I bought and swapped for a Continental tube. I then went across the street to La Bicicletta to ask them about tire tubes and yes - you get what you pay for. So for now, I'll see how they go. I have a Kenda tube on the rear of my Scott - so far so good.
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What do you guys run your tire pressures at? I realized on my ride two days ago mine were way under inflated from the shop (Go SportChek!). I actually bottomed out on the rim on a bump. Luckily they aren't carbon, and B) I see no damage (no flat either  ).
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I run my front at 110psi and rear at 120psi. You should invest in a proper floor pump. The hand pumps really are for emergency situations when you're on the road, enough to limp you home or to the nearest shop. Make it a habit to always check your tire pressure before every ride. (I learned the hard way!)
