Originally Posted by
DropBarFan
Only ride where I got saddle-sore from bumps was C&O ride way back in high-school on a thinner-tire bike. C&O doesn't have massive bumps but they're pretty constant. One might like the challenge of riding on a thin-tire bike but otherwise why not go comfy w/50 mm tires?
Because 50mm tires don't fit a lot of frames that aren't mountain bikes. A mountain bike isn't a bad choice for the C&O but it is a bad choice for touring on paved roads.