LordMersey Posted October 9, 2009 Report Share Posted October 9, 2009 I was just wondering if it would work to save money on inertubes.CheersJack Quote Link to comment Share on other sites More sharing options...
forteh Posted October 9, 2009 Report Share Posted October 9, 2009 Been covered a couple of times on here by different people, it works in the front but not the back, the pressures are too low. Quote Link to comment Share on other sites More sharing options...
MiuSliS Posted October 9, 2009 Report Share Posted October 9, 2009 In back back you have to custom make tubeless. My friend has done it. Of course as you because if the low preasure it had some problems when jumping off sharp edges in things like that. Quote Link to comment Share on other sites More sharing options...
D A N N Y Posted October 9, 2009 Report Share Posted October 9, 2009 Wouldn't they be too soft for like tapping ? Quote Link to comment Share on other sites More sharing options...
Revolver Posted October 9, 2009 Report Share Posted October 9, 2009 Only if you didn't pump them up. Quote Link to comment Share on other sites More sharing options...
Mr Bob Posted October 9, 2009 Report Share Posted October 9, 2009 No point in my opinion. Quote Link to comment Share on other sites More sharing options...
Revolver Posted October 9, 2009 Report Share Posted October 9, 2009 I'm ever so slightly considering this on my bmx... Quote Link to comment Share on other sites More sharing options...
Robwalker Posted October 9, 2009 Report Share Posted October 9, 2009 Very light. Quote Link to comment Share on other sites More sharing options...
psycholist Posted October 9, 2009 Report Share Posted October 9, 2009 (edited) I run tubeless on an XC bike and based on my experience with them there there's no way I'd try running them on a trials bike. I've had the front tyre lift from the rim (And spit air and sealing goo out) on hard corners, which are nothing like as hard as say hopping 90 degrees to front onto a ledge, and that was at 30 PSI. I've also pinch flatted a tubeless rear tyre (though it was a conti and they have very thin sidewalls) when I hit the edge of a step with 35-40 PSI in the tyre on a full suspension bike - the landing was way lighter than I land the trials bike on similar edges too. So basically it's more likely to drive you mad or cause you to crash than help on a trials bike. I've also not noticed any difference in drag or grip comparing tubeless to tubed tyres (Including the same tyre run with and without a tube), so hard to justify for that use too. The sealing goo I think does stop a lot of the annoying small punctures you get from thorns riding XC, but won't seal a proper hole. It also brings the weight of a tubeless tyre (Heavier than a standard one because of the butyl layer added to allow them to seal) + goo to about the same as a tubed tyre. I have run some standard tyres tubeless with goo though, so that's where some weight can potentially be saved...To make it work on a trials rim you'll have to go with the ghetto tubeless setup - slit a 20" tube around the outside, stretch it over the rim and use the valve of this tube to put air into a tyre you seal onto the outside of the tube with tubeless sealant... Edited October 9, 2009 by psycholist Quote Link to comment Share on other sites More sharing options...
Mark W Posted October 9, 2009 Report Share Posted October 9, 2009 Fatmike's tubeless session seemed alright, but I wouldn't really want to have to deal with it personally... Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted October 9, 2009 Report Share Posted October 9, 2009 tubeless how dose this work ? Quote Link to comment Share on other sites More sharing options...
psycholist Posted October 9, 2009 Report Share Posted October 9, 2009 Very like tubeless in cars. The rim is sealed (Spoke hole don't go the full way through it or a sealing rim tape is used), the valve clamps into a hole in the rim to keep the rim sealed and the tyre bead on each side pops onto a ridge in the rim under air pressure as you inflate the tyre. Usually a latex type rubber solution is added to seal small holes in the tyre as they form to keep the tyre inflated. Quote Link to comment Share on other sites More sharing options...
Sam Moss Posted October 10, 2009 Report Share Posted October 10, 2009 Whats the advantages and disadvantages of this? Quote Link to comment Share on other sites More sharing options...
Greetings Posted October 10, 2009 Report Share Posted October 10, 2009 A thick inner tube is like 5 quid. Unless you're building up your dream bike and are 5 quid short, I can't see why the hell you'd want to avoid buying an inner tube. Quote Link to comment Share on other sites More sharing options...
MikeCottTrials Posted October 10, 2009 Report Share Posted October 10, 2009 I'd say not, been on a downhill bike with them and upon compression air leaked out quite a lot.So with that in mind, there's no chance that it'd work for a trials bike Quote Link to comment Share on other sites More sharing options...
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