nice bikes - i dont see a lot of brake rub on the rims (but the pic is pretty bad) -- Somebody looks to have already installed a wider range rear cassette, which is a plus. Appears to just need some cleaning up and naturally service the bottom bracket , hubs and headset as the bike is over 30 years old and the grease is likely vaporized by now
16 mph group ride? Sure - just being old doesnt mean its slow . These were capable race bikes