Everyone,

I've found a variety of forks on aliexpress that will go up to 700x45 or 650b x 2.1 but I'm curious if anyone knows of an option for wider tires that's not a MTB fork? Has anyone seen a fork that can do 700x50 but that has flat mount brakes?

The Carbonda CFO606 will easily clear a 700x50 tire and has a flat mount brake. Lots of people using that with their CFR696s, so I'd consider it a safe option.

Thank you! Does anyone have experience with how big of a 650B tire this fork will take? I'm just curious at this point.

I have no personal experience, but I have heard of people running 650b x 2.25" tires on the CFR696 frame. I recall seeing that on the Riding Gravel forum Carbonda thread. Not sure how much extra clearance there was though, or if that was the actual measurement.