dezmtber Posted February 17, 2012 Report Share Posted February 17, 2012 i am going to use schwalbe 14" tubes (due to having screw thread on the valve) stans sealant. and double rim tape just to be careful and to build up the rim to seat the tyre better. i am getting to it tmz. i keep every one posted on how well it fits and what it withstands after fitting fitting to an onza master 20" trial bike Quote Link to comment Share on other sites More sharing options...
Ali C Posted February 17, 2012 Report Share Posted February 17, 2012 been there, done that 1 Quote Link to comment Share on other sites More sharing options...
Greetings Posted February 17, 2012 Report Share Posted February 17, 2012 Good luck and all but what's the point? Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted February 17, 2012 Report Share Posted February 17, 2012 There's just no beating that burping sound when air escapes every time you land or takeoff. Combined with those burps messing with your braking surface (for rim brakes) what's not to like?! 1 Quote Link to comment Share on other sites More sharing options...
Mark W Posted February 17, 2012 Report Share Posted February 17, 2012 No pinch flats is a pretty sweet benefit. Quote Link to comment Share on other sites More sharing options...
trialsbeginner Posted February 17, 2012 Report Share Posted February 17, 2012 cool! a bit like a car Quote Link to comment Share on other sites More sharing options...
dezmtber Posted February 18, 2012 Author Report Share Posted February 18, 2012 i am trying out keeping the extra bit of tube left over and glueing it to the tyre to stop the burping its quite tricky i will keep u posted on what works. all ready tryed tub glue and pucture repair glue see how it goes Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted February 20, 2012 Report Share Posted February 20, 2012 Could you still run low pressures this way? I've never really looked into it... Quote Link to comment Share on other sites More sharing options...
dezmtber Posted February 21, 2012 Author Report Share Posted February 21, 2012 i am going to find out tommora mate. out on the bike i ahve left it over 24 hours to dry n stick properly. i may even try running sily low presures i already run 15psi in the rear and 20psi in the front. i will go out and try to fold the tyre on perpose. if it works i will post pics of the work for u guys to give it a try. i amgoing to call it ghetto tubularless Quote Link to comment Share on other sites More sharing options...
Ali C Posted February 22, 2012 Report Share Posted February 22, 2012 I did something similar but used liquid latex as the sealer and used it to "glue" the excess tube to the tyre. worked really well, tested it on a light weight tyre and tried to get a puncture but ended up just denting the rim. Never got it to work again though. Quote Link to comment Share on other sites More sharing options...
Simpson Posted February 23, 2012 Report Share Posted February 23, 2012 Could you still run low pressures this way? I've never really looked into it... No or the tyre would just fall off the rim. You must run high pressures to keep everything pushing outwards? Quote Link to comment Share on other sites More sharing options...
dezmtber Posted February 23, 2012 Author Report Share Posted February 23, 2012 No or the tyre would just fall off the rim. You must run high pressures to keep everything pushing outwards? thats why i am glueing the tube to the tyre, so they are as one and keep it all on the rim. so far the rear using rim cement has worked. and the front using rubber cement has failed, but still holds presure. i am considering glueing and stitching the tube to the tyre to get it prperly secured Quote Link to comment Share on other sites More sharing options...
Chris Borneo Posted February 23, 2012 Report Share Posted February 23, 2012 Can't see what advantage this will have over running tubes? Quote Link to comment Share on other sites More sharing options...
weirdoku Posted February 23, 2012 Report Share Posted February 23, 2012 I want to bet that you'll just eventually go back to tubes. 2 Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted February 23, 2012 Report Share Posted February 23, 2012 Can't see what advantage this will have over running tubes? lighter, cant pinch i think thats about it. But if you get a puncture from a thorn or something i think you need a new tyre (correct?) I want to bet that you'll just eventually go back to tubes. This Quote Link to comment Share on other sites More sharing options...
Mark W Posted February 23, 2012 Report Share Posted February 23, 2012 if you get a puncture from a thorn or something i think you need a new tyre (correct?) 1 Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted February 23, 2012 Report Share Posted February 23, 2012 Pretty impressive Quote Link to comment Share on other sites More sharing options...
dezmtber Posted February 24, 2012 Author Report Share Posted February 24, 2012 basicly if i can get it to work right, you will only change the tyre when the tread is worn out. punctures will be sealed using stans and i can always top it up through the valve when enver i like. pros: lighter and i can use tryall sl 2.5 and schwalbe Mow Joe 20x2.0 Folding tyres loosing around 450g no pinch punctures no thorn or small glass punctures should be able to run lower presures lower rolling resistance due to thiner overall rubber cons: cant change my tyres without a hell of a mess it is possible only in extremes to pinch the tyre sidewalls,( which would have resulted in tube puncture ) the lighter front tyre is not tacky trials compund. (bmx racing tyre) fiddly job when replacing new tyres it can take a few days for the glue to seal correctly (normal tubeless is instant) Quote Link to comment Share on other sites More sharing options...
Simpson Posted February 24, 2012 Report Share Posted February 24, 2012 I don't think folding tyres are a great idea for tubeless....I don't think folding tyres are a great idea for tubeless.... Quote Link to comment Share on other sites More sharing options...
onza pro series guy Posted February 25, 2012 Report Share Posted February 25, 2012 I did something similar but used liquid latex as the sealer and used it to "glue" the excess tube to the tyre. Possibly the first time latex has been used in trials without making someone looking like a gimpy hipster in the name of 'performance and competititon?! Quote Link to comment Share on other sites More sharing options...
dezmtber Posted February 25, 2012 Author Report Share Posted February 25, 2012 folding tyres are much better having a kevlar bead on them which wont strech like a steel bead. giving better long term hold on the rim Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted February 25, 2012 Report Share Posted February 25, 2012 basicly if i can get it to work right, you will only change the tyre when the tread is worn out. punctures will be sealed using stans and i can always top it up through the valve when enver i like. pros: lighter and i can use tryall sl 2.5 and schwalbe Mow Joe 20x2.0 Folding tyres loosing around 450g no pinch punctures no thorn or small glass punctures should be able to run lower presures lower rolling resistance due to thiner overall rubber cons: cant change my tyres without a hell of a mess it is possible only in extremes to pinch the tyre sidewalls,( which would have resulted in tube puncture ) the lighter front tyre is not tacky trials compund. (bmx racing tyre) fiddly job when replacing new tyres it can take a few days for the glue to seal correctly (normal tubeless is instant) Really? i thought with tubeless, you've still got to use half an inner tube for the valve and to seal the nipples, with that and the weight of glue, sealer, ect, would overcome the weight of a normal inner tube? Quote Link to comment Share on other sites More sharing options...
pogo Posted February 26, 2012 Report Share Posted February 26, 2012 Plus wouldn't all that sealant sloshing around affect the feel of it? 1 Quote Link to comment Share on other sites More sharing options...
SamKidney Posted February 26, 2012 Report Share Posted February 26, 2012 You could use a much thinner tube than that required to stand up to the abuse this setup could potentially take using a conventional tube/ tyre setup. And the sealant shouldnt affect the feel really, the weights minimal and the tyre moves independently of the liquid anyway. Its not like its adding weight in one area of the tyre. The liquid will always be at the lowest point. If done right, It will be lighter. Quote Link to comment Share on other sites More sharing options...
Skorp Posted February 26, 2012 Report Share Posted February 26, 2012 i have tried tubeless on my previous bike. Normal XC rim front, and a Schwalbe Furious Fred tyre. Trialtech SL and a Continental MountainKing Supersonic 2.4 rear tyre. A Scwalbe presta valve and the stans kit. Cut the Scwalbe valve off the tube. had approxx 10mm of tube left just around the valve. Found a nut that fitted, and a washer, then tightned it until the rubber that was left on the valve started to pull troug. Just to absolutely get a tight seal there. For the front wheel i used 70ml of liquid at first, filled the tyre to 60psi while rotating so that the liquid could seal everywhere. I then tapped out al the accsess liquid out. (Not a good idea, as this makes it alot more vulnerable) Rode with this setup for quite some time, until i rode natty one day and got a rift in the tyre. With the rear wheel i used somthing like 100ml. The same type of valve as for the front wheel. Used some wide GOOD electric tape as rimtape. Taped two rounds with the glue down, to be sure that it would seal. Tried it maybe 15 mins, the tyre was too light to be used for trials in the first place, and without a tube supporting, it felt horrible. The tyre got almost instant a big rift and the sealant could not seal it. i think i'm going to try it again, but with decent tyres..Because these two i tried with, they weighed less than a rear tryall 20" tyre togheter. i do not think a normal rimtape would seal at all. Any normal tape thats wide enough to cover the holes in your rim could be fine. I chose the electric tape because its easy to tape without getting folds and wrinkles that air could escape trough.. Quote Link to comment Share on other sites More sharing options...
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