Originally Posted by smashndash

Sorry to revive an old thread, but I’d like to second this just in case people are curious. I have a rim brake Sprint. I ran a 28mm p zero on a 20mm internal rim in the back - pretty sure that would have fit in the front too. I’m about to get some 23int/30ext rims and put either 25 or 28mm tires on them. I’ll update this thread once I get the wheels. I suspect a measured 31 or 32mm tire will be too much.

also, I’ve gone gravel riding with 25mm gators on this bike. Was it sketchy? Obviously. Was it a hoot? Totally.