In the olden days, even racing tyres used to come with two pressures marked on the side, one for "normal" rims and one for hooked bead rims. Now they just say "Use only on hooked bead rim", leaving you to guess what pressure to use if you fancy trying them on old rims. I would be on the lookout for a tyre which works well at 40psi or so. Schwalbe do their HS159 in a gumwall colorway™, which I assume is what you're after for anaesthetic™ effect, with a suggested pressure of 50-85psi, so they should work at 40 if you're not a total lard arse.
In the olden days, even racing tyres used to come with two pressures marked on the side, one for "normal" rims and one for hooked bead rims. Now they just say "Use only on hooked bead rim", leaving you to guess what pressure to use if you fancy trying them on old rims. I would be on the lookout for a tyre which works well at 40psi or so. Schwalbe do their HS159 in a gumwall colorway™, which I assume is what you're after for anaesthetic™ effect, with a suggested pressure of 50-85psi, so they should work at 40 if you're not a total lard arse.
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