Originally Posted by
fraba
Just to note that a 700c 45mm has a larger diameter than a 650b 47mm. 650b 47mm is roughly the same diameter as a 700c 28mm. It is interesting because you can change between wheels for road and gravel without affecting the geometry of the bike. If the bike can take both wheels and has enough tire clearance.
Gah, I'm dumb. I didn't even think about that. That totally explains the popularity of the 650b wheel set. No way can I put a 700c 45mm tire on my bike...won't have the clearance.
