Thanks a lot mate. Appreciate it. I measured my 650B-tires that are 47C width. I have approx 15 mm of clearance from tires riding surface to motor housing.
For the moment I'm looking at buying 32x700C-tires for summer but for winter I would like to have something like 40x700C which could be...
Thanks for your review! Cannondale Synapse Neo SE owner here. It's nearly the same bike with exception of 650B-tires and drop-bar etc.
I have been thinking about buying second 700C wheelset for road/light gravel. How wide/tall tire do you think you could fit in there? With 650B there is plenty...