I have a mid 80's Huffy touring bike that I'm considering re-riming to either 700c or 650b from 27". I know that the canti brakes would be a problem with 650b but I don't know if there are any road touring tires in that size. I don't think I could find a 40h rim in 650b either. The only reason I am even considering 650b is to fit wider tires to soak up all the pot holes around here.
So, are there touring tires in 650b and are there any rims available in 40 hole?