Originally Posted by
SquidPuppet
IMO their chart is too cautious on the wide rim tolerance and WAY too liberal on the narrow side.
I mean, they are engineers, and I'm not, but a 62mm tire on a 19mm rim is OK?
And I'm operating in the EXTREMELY unsafe zone with a 35mm tire on a 27mm rim?

I thought about this after I posted and realized that their recommendations are probably very conservative.
My point really was about the 'light bulb effect." I think people worry about it too much.