[pakora]

I'm sniffing around the possibility of 650b wheels on a custom all road bike (instead of the 32s and fenders that I've already considered and been running on other bikes) and I'm 90% sure I can digest the Kool Aid. But:

At my weight (220 kitted and shod) on a big bike (say 63 c-c) I'm not sure about the pressures people talk about riding on the road or mixed surfaces. With super high volume tires that are nice, can heavier riders on big bikes still benefit in the same ways? I haven't seen many 650b bikes either in the wild or online that approach that size except super burly extreme bikepacking/mountain bike/monster cross things.

I run 30 pounds in my cross race tires, and e.g. 20-22 psi in 2.4" tires on my mountain bike, but descending at 40mph is different. I've ridden tires with the pressure too low (unintentionally of course) and felt my contact patch change as the bike navigates a turn. As a result I have trouble thinking about running a road tire at like 40 psi (or less) even if it's 42-47c. I totally get that car tires are like 28 psi but... maybe I just need help getting my brain to accept it?