Marathons have pretty stout casings. You probably don't need all the pressure as you can cram in. You might need less than you do with a "supple" tire which we mostly groupthink agree is already a lot lower than what we used to run. 60 sounds about the right kind of pressure to me for a 32.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."