Rennie Wible wrote:
  -cut->
> I also agree that larger tire can be a problem with only 6" to play with
> (sounds like a personal problem!).  But I did some searching for tires
> at tirerack.com and they show quite a few tires for this size rim.
> Maybe not 245/75R16 (although they do list some for 6" in 235/85R16),
> but I can't see using 10"+ wide tread with our lack of hp anyway!  I was
> more leaning towards 215/85R16, with a diameter around 29-31".
>
> I really like the fit of 215s on my passat rims, so I will probably
> stick with that width.
>

I am also a little at a loss on the appeal of the large
tires, in width as well as diameter.  At some point,
size/weight becomes a liability and diminishes
performance.  The ideal size in terms of suspension
performance and power-transmitting efficiency and
traction and ability to take rough terrain at speed may
not necessarily be the biggest fattest tire you can
squeeze in there.  Excuse my exageration.  But i was
curious whether there has been much effort to determine
what the best size/weight would be on performance
grounds rather than just height.

Steve