I can't seem to inflate Conti Ultra Gaterskins on my 27" Super Champion 58 rims above 90 psi without the tire blowing off the rim. It is on a tandem so 120 psi or so would be nice (we are no an especially lightweight team). Has anyone found a modern tire that will stay on this rim at these pressures? The SC 58's seemed to be a quasi hooked bead rim. I think that I recall that Conti Sport 1000's were a bit better at staying on at higher pressures but were more flat prone. Any tricks to getting the tire to stay put? Classic content are the rims and the bike, a '73 Jack Taylor curved tube tandem.
Thanks! Paul Raley Nice riding weather in Leonardtown MD
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