Old 03-29-20, 10:00 AM
Join Date: Sep 2012
Location: Central Florida
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Bikes: Many, mostly old & low tech

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All good points above. If you have clincher rims from the original '70s period they probably have straight inner sidewalls, not hook bead. So tire selection becomes a little problematic for bead retention. I've had trouble with foldable tires on Weinmann Concave rims which are pretty typical from the period. It seems that above around 85 psi the trouble starts. As such, larger volume tires are fine if your frame can fit them. But wire beads work better on such rims, as will careful mounting. The previously mentioned, Panaracer Paselas are good riding, classic looking and available in both bead types and multiple sizes. I've got 27 X1-1/4 Paselas on my Trek 614 and they feel great (on Mavic MA2 rims).
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