Subject: Re: best inner tubes Posted by: Dougie the Roadie on February 01, 2004 at 00:54:35: In Reply to: Re: best inner tubes posted by nate on January 02, 2004 at 04:41:48:

Message: >I have no idea whose tubes hold air how long, but I thought I would add the comment that this seems like it would be a hard thing to try and figure out internet-survey-style, because many/most people just don't pay that much attention to maintaining inflation pressure. >One thing is that there are probably way fewer manufacturers who make the valves that go on tubes then who make finished tubes. I would guess that most of the trends you'd observe about which brand of tube leaks slowest would have to do with who made the valve on those tubes, rather than the entire tube. (All or most of the pressure loss in butyl tubes does happen at the valve, right?) So it might be worth trying to figure out just how many valve makers there are, and who uses what. >Another thing is that high-pressure tires probably lose pressure at a much faster rate than low-pressure tires, so it would help to make that distinction. >>>Don't use latex tubes. My racing tubulars go soft after a day and flat after two. I use cheap tubes for everything else, work great. >> >>Thank you Karen, I did a little bit of research about that on the internet, I did find that latex tubes are not good holding the air. I have Vittorias butyl inner tubes but they loose pressure fast. >>I wanted to ask for recomendations because I know that some inner tubes are better than others in holding the air. My friend has to pump very few times in a year, unfortunatelly the tubes do not say any brand name on them. >>If any one could be so kind and say for example I use NNNN brand and hold pressure for about AAAA days. >>Thank you all. >>Froque. I use Specialised (Made in Taiwan) and pump them to 150psi using Continental Grand Prix 3000 Tyres. They need re-inflatring about every 3 weeks (okay thats about 21 days).