“I’ve currently got WTB 37C Riddlers on one bike, I think I’d be pushing it to get the 45C version in there but might try the 40C Nanos at some point. ”
40c nano measured exactly the same as the 45c riddler on my dt460 rims. Riddler was a little taller though.
Now have riddler front, GK 43c rear, which I prefer to the Nano.