Join Date: Aug 2006
Location: Cincinnati Ohio
I question why anyone would actually solicit "Charley" for information, other than the closest route to the mens' room, but let me ask why you would want to change 16 inch wheels for 15 inch wheels? First, the overall diameter of a 33" tire is the same, so a 15 inch wheel trades the weight of one inch of wheel diameter for one inch of tire inside diameter. The rubber weighs less than aluminum, but has to be thicker. Does it weigh less? Who knows? Not "Charley" that's for sure. And, you have the brake hardware issue to contend with.
Second, I doubt you could even detect the difference between a 285 width tire and 10.5. The difference might be 3/4" and the brand and model of tire makes far more difference in weight than 3/4" in width.
If you want a lighter tire, go check the weights of tires on Tire Rack and pick a light one. I run the same rig as you do, and would never waste money on this issue. Remember that when you reduce weight of a tire or a wheel, you give up something else. Durability, reliability, longevity, etc. The engineers at BFG or Firestone don't just say to themselves: "Gee, we have some extra rubber and aluminum laying around, let's just slap it on Nick's tires and wheels so they weigh more." There is a reason for the weight. And, while you can have different priorities, there is no such thing as a free lunch.
03 Rubicon; 99 xj with too much stuff to list; Unimog 406 (gone)