The least fashionable wheel size, there are very few good rims and tyres now and it's only going to get worse. You can try to fight it, or you can just accept that 650B is the new 26"
Yeah, I could live with that, although 650x45b is basically back up to 700c road bike size.
Are there any framesets out there designed for 650b with small (~35c) tyres and tight clearances? At that point I assume most/all manufacturers wouldn't bother catering for something so niche.
The least fashionable wheel size, there are very few good rims and tyres now and it's only going to get worse. You can try to fight it, or you can just accept that 650B is the new 26"