I patch the tubes until the valve stem leaks at the tube junction, this seems to go before the tube rots.
Patching the tube also lets you know where on the tire the puncture occurred. I always align the tire label with the valve stem. If it is not obvious where on the tire the puncture occurred (typical with steel belt wire penetrations) the location of the leak in the tube will tell you two locations to look at on the tire. At least I don't have to un-sew and re-sew the casings any more. I had a set of Vittoria silk sew-ups in the early seventies that were worth a half month's rent (they were on my Gitane TdF when I bought it used), so I patched them till the silk rotted and they exploded. Sounded like a gunshot when they let loose. Laing -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.