I would like some Dunlop 27x1" to go on them, because the present set of tyres is early Japanese 1 1/4" for Schwinn, each weighing-in at a "sumo-level" 500g. They do pump-up to 85 psi, though, so it could be worse, and are great training. Not sure if any Dunlops are still road-worthy, especially at-speed.