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It would be nice to not have to use the tubes, but I don't know if the KLR rims have a good enough bead to give me a dependable, solid seal at that joint.
I was worried about that too.
So Lannis, you think that tube is keeping the old tube tire on that old tube rim once deflated? Does it act like a rim lock, hmmm? Or should everyone with an old tube rim replace their wheels, since they are clearly unsafe (tubed or not)? If anything, tubeless tires greater resistance to deflafion when punctured makes them a safer alternative for old tube rims (nevermind cooler running, longer tire life, less unsprung and rotating weight). How many times have you worn the head off a nail that punctured a tubeless tire because you had no idea until you looked (or had a SLOW leak). Ever happen on a tubed tire? Not to me. Deflation is immediate.Just because a rim was not made to run tubeless, doesn't mean it is unsafe to do so. On the contrary it is always safer running tubeless regardless of rim profile. Tubes do not keep tires from jumping off old style rims, and actually make it more likely. Your faulty logic could cause someone to forego tubeless and the safety it provides.
I've converted both my California Stones to tubeless and couldn't be happier. What is important for such conversions is that there is a sufficient depth of the rim's bead area. I looked at the OEM rims of my 74 Norton and they definitely are NOT deep enough for tubeless conversion. The Cali Stone rims certainly are. Ralph
I know many people who have made this modification and experienced no problems.