Kyle Petersen Posted February 20, 2017 Share Is the beading in the tire "wire beaded", if it is, did it not get bent and now allowing air out and not a proper seal. Normally happens when popping the tire on Link to comment Share on other sites More sharing options...
BaGearA Posted February 20, 2017 Share Is the beading in the tire "wire beaded", if it is, did it not get bent and now allowing air out and not a proper seal. Normally happens when popping the tire onfolding and pops on perfectly , when under water there were no bubbles from the bead at all. Link to comment Share on other sites More sharing options...
Tony datoy Posted February 20, 2017 Share 6.5mm should be fine for Presta. I've never measured the inside hole. inside hole :8mmOutside hole: 6.5mm Is this different from usual? Link to comment Share on other sites More sharing options...
Thomo Posted February 20, 2017 Share I felt this way about my road tubeless setup too. Link to comment Share on other sites More sharing options...
Trance Dance Posted February 20, 2017 Share Are these rims 30mm internal or external width? Link to comment Share on other sites More sharing options...
Oldtmr Posted February 20, 2017 Share The inside 8mm is what is sugested by stans aswell so the hole sizes are right Link to comment Share on other sites More sharing options...
BaGearA Posted February 20, 2017 Share Are these rims 30mm internal or external width?internal , 35 external. Ended up hot gluing the valve into the rim and seems to be holding. Will report back tomorrow morning Will search for quality 30mm proper tubeless tape and redo everything and see what happens then Link to comment Share on other sites More sharing options...
johannrissik Posted February 20, 2017 Share It's a dual-wall rim. My guess is that air is getting past the outer skin and into the "inner chamber" of the rim and then leaking out at the valve (spoke holes will have sealed by now as the gap is tiny). I once had a similar scenario on a Crest rim that had a longitudinal hair crack. I'd suggest looking for some very fine faults in the rim, probably where the two "walls" join, maybe even in the bead seat area. Good luck. Link to comment Share on other sites More sharing options...
AlanD Posted February 20, 2017 Share I have a rock razor on giant rims with gorilla tape and its held up perfectly well and was my second attempt at tubeless. If all else fails, get a new rim or run a tube. Link to comment Share on other sites More sharing options...
BigTom Posted February 20, 2017 Share internal , 35 external. Ended up hot gluing the valve into the rim and seems to be holding. Will report back tomorrow morning Will search for quality 30mm proper tubeless tape and redo everything and see what happens thenDidn't expect to see that as a potential solution. Link to comment Share on other sites More sharing options...
dev null Posted February 20, 2017 Share internal , 35 external. Ended up hot gluing the valve into the rim and seems to be holding. Will report back tomorrow morning Will search for quality 30mm proper tubeless tape and redo everything and see what happens then To me that points to some problem in the rubber seal of the valve. Link to comment Share on other sites More sharing options...
mudda Posted February 20, 2017 Share not all tubeless valves are the same The best ones I found have a round shape http://www.superstarcomponents.com/library/cache/product_expanded_image/library/product/brass-tubeless-valve/Tubeless-valves.jpg The not so great ones have this shape . Link to comment Share on other sites More sharing options...
Plentipotential Posted February 20, 2017 Share As you have tried various valves and now holding with hot glue you may have an odd shaped hole. A slight crack, over tightening? or a burr. Perhaps check under a bright light with a magnifying glass? I can only imagine your frustration. When I was up for new wheels I went for Mavic 819's as that's a tubeless rim. Best upgrade to my bike if I'm honest. Link to comment Share on other sites More sharing options...
BaGearA Posted February 20, 2017 Share 3 different valves used all with different profiles The one in there now has a tick round base that tapers up until just before the valve comes out of the rim. Link to comment Share on other sites More sharing options...
BaGearA Posted February 20, 2017 Share Right now It seems to be holding so I don't care , I can ride my bike and thats all i want to do Link to comment Share on other sites More sharing options...
mudda Posted February 20, 2017 Share I cut A tiny x in the tape and carefully push it through I make a tiny round hole with a small nail - smaller than the valve .. then i pres the valve through the small hole, and the valve adjusts the hole size ... The "x" cut could cause leakage ... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.