Jake's observations are why I sort of went for the "middle" ground by
getting this tire in 215/65-16.
They're 27" diameter was an improvement from the 28.4" Michelin's I'd had
and still they give a great ride and stability. Really good off road tire,
too. I went to the Overland BB Kit from BenT to take care of that factor.

Bob

> If you go to Tirerack.com you can look up the revs/mile figures for the
> tires you are considering. I personally wouldn't go beyond a 10% increase,
> ie 215/65R15.   Too much taller will work your motor much harder, and the
> braking will be noticeably weaker because of the increased flywheel effect
> of the larger diameter tires.
> I learned this the hard way myself, you can make your own choice!