Maybe not, but there are a lot of old road bikes out there that can handle 650x42b tires no problem - like my (mid 70's?) Mondia Super. Just finished building it up as an allroader, but have yet to take it off pavement. I also had a Mondia Special 50+ years ago that I regularly took on what we now call "mixed terrain" rides with 700x32c touring tires (the widest available back then). Long as I didn't get too rambunctious (or try to climb anything too steep!) it worked fine.