Rene Last time I was there at Riv HQ I scanned the garage-sale leftovers table. I scored an A Homer Hilsen cap that only fits freakishly large domes like mine. Under the table were the Foss tubes for $10. They were mostly or all 650B x Fat. I asked Vince about it and he said that it seems that "they weren't what people thought they were". I took that to mean that enough people complained about them that they decided to simplify and stop carrying them. One misperception I can imagine people having is that they are flat-proof. I've had two flats with Foss tubes. I was pleased that they were trivially easy to patch with the Fossy patches, but I would have been bummed if I thought they were flat-proof and hadn't bought the special patches.
The other weird thing about them that I have noticed is that they seem to have thinned out at the rim well, where they are pressed against the adhesive rim strip. I just swapped tires on the Hilsen last night and pulled them out. The poly material seems paper thin in that area now. Maybe if that gets much thinner I'll start to see slow de-pressurizing like you? I'm still using the Foss tubes, one pair of 650xnarrow and I have one pair of 650xFAT for when I run knobbies on the Bomba. I'm not throwing them out, but all my backstock of 650B tubes are now Schwalbes. On Thursday, January 24, 2013 11:54:37 AM UTC-8, René wrote: > > I have Foss tubes on my Betty. The rear one is losing air perceptbly every > day, but at a very slow rate so it doesn't go flat in a day but I can tell > the difference from morning (pumped before I leave the house) to evening > when I ride back. > > I'm going to pull the tube out to see if I can detect anything, but was > wondering what the overall feeling is for these now. Keep them or go back > to Schwalbe tubes? > > Riv doesn't seem to be selling them anymore... is that a clue? > > René > -- 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. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en. For more options, visit https://groups.google.com/groups/opt_out.