I am just getting back into tubeless after a long hiatus, and I am no expert. In the past month I got a new 29er MTB with tubeless wheels (the rims on my old MTB were not tubeless compatible) and I also mounted Hetres on a new wheelset that has Stan's rims using Stan's tape and Stan's sealant. My understanding is that some of the sealant forms a solid layer of latex on the inside of the tire and some stays liquid. Eventually the liquid will evaporate, but it does not leave a heavy lump of latex in the tire in my experience. You may have to add more Stan's to your tires once or twice per year to maintain the liquid flat-sealing component. I think Stan's sealant is latex particles suspended in an ammonia solution with some secret ingredients.
I have not had any problems with my tubeless Hetres so far, but I don't have many miles on them yet. One tip for mounting with a floor pump is to try to seat the beads of the tire as peripherally as possible on the shoulders on the rim by pinching and pulling and lifting with your thumbs before you start pumping air through the valve. I am interested in tubeless Pari-Motos since in theory that would maintain the lightweight and supple qualities of the tire while improving flat resistance significantly. However I don't think I can safety try using my new wheelset with sub-350 gram Stan's rims because I have heard they have a 40 PSI upper limit. I am hoping that it may be possible with the new Pacenti or Velocity A23 rims. - David G, Madison WI On Tue, May 22, 2012 at 3:37 PM, William <tapebu...@gmail.com> wrote: > The thing that I'm not clear on is what actually is happening to the > sealant goo? Is it hardening into a rubber coating? Is the entire inside > of the tire and rimstrip coated? So when you remove the tire when it's > worn out, you are destroying that seal by ripping it apart. What about the > puddle of extra sealant at the end? If you leave that pooled in the > bottom, does that make an offcenter lump that shakes the workstand when you > spin the wheel, same as a reflector? I'd hate that. Or does it stay > liquid and slosh around forever? Or does it magically go away? If I do > mount tires again, I need more sealant, right? At some point I imagine the > weight of a few sealing jobs could exceed the weight of a tube. Is that > crazy talk? > > > On Tuesday, May 22, 2012 1:10:25 PM UTC-7, Patrick in VT wrote: >> >> On May 21, 5:42 pm, William <tapebu...@gmail.com> wrote: >> > Thanks for that tip. I'll probably do the wheelbuild and the tire >> > installation at the bike shop where I used to work. That'll give me >> access >> > to a burly compressor. >> >> a compressor definitely helps, but I've had good luck with a track >> pump and soapy water (rims are UST though, so that probably helped >> seating). it's a simple process and shouldn't be messy at all if the >> tire and rim work together. just don't bug out if they don't seal up/ >> hold pressure right away. If the sidewalls on the b-lines are porous, >> it might take a day or two for the sealant to do its thing. >> >> I can't imagine using tubes again on my MTB. it's just a better way >> to roll. > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
