Originally Posted by
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They are clincher, and my rims are aluminum super champion, possibly original (1972-3). They cracked my freewheel loose, so re packed both campy hubs today.
Some of those old Super Champions were hooked, and some not. I have one of each. Just check the inside of the rim sidewall and see. In any case, 120 psi is probably the max rating. Lower is OK, but be careful with any non-hooked rim, as Gaucho said. Are they wire bead tires, or other?