Some of you may have been down this route so I thought I would ask here. Bike in question is a '96 Road King, stock mag wheels, forks and rear swingarm.
I'd like to run a rear 140/B90-16 tire front and back, stock is 130/B90-16.
I'm thinking these will fit but I'm not positive on the front fitment. Seems to me they should.
Any thoughts? Thank you.

 

I'm not an expert on the older bikes, but I know the dressers used to have the same size tires on them. As a matter of fact, I think they used the same exact wheel and you could move front to back and visa versa.
You might be able to mount one for the back and try mounting it on the front just to check for fitment. You may have to remove one of the rotors to check it, but it seems like it could be done.

I don't think there should be an issue with that little bit of a wider tire.