Originally Posted by
JohnDThompson
Well, OEM wheels for a 1975 PX-10 would be tubular (aka "sew-up") rims, so switching to a clincher rim could arguably make them less flat prone; certainly easier to repair the flats that do occur.
OP did say he’d gotten ”new tubes for the tires”, so I think it’s a fair assumption that the bike already has clinchers.
While some will use ”wheel” and ”tire” rather indiscriminately, ”new tubes for the tires” seems like an improbable phrase to use for replacing tubulars.