Want 20's. need info

[Yukongk]

I'm looking to get nnbs Denali 20's, Esky wheels, or whatever GM wheels I come across that look good. Do all 2007+ GM wheels fit my 2001 nbs?

Aside from fitment, what can I expect performance wise? Gas mileage, handling, acceleration, snow performance, occasional off road performance, etc?
Thanks

 

[THE YETI]

I have CK347 brand new for $749 shipped. Chrome. 22".

 

[chauncey0337]

Yes all 2007+ gm wheels will fit. 20 s are bigger than stock so there's more rolling mass. Braking and acceleration might suffer a bit. Will you notice the difference- probably not, depending on how you drive. I don't notice much and I put my stocks on in the winter but I rarely push my tahoe. The ride will be a little more stiff because you don't have the taller sidewall. Off road performance will depend on the tires.

 

[Danzigman]

You will lose a few mpg as well. I put 20" SS wheels on mine about 2 months ago, mpg dropped 2 miles a gallon.

 

[Sasquatch]

When i swapped my LTZ wheels for the stock 16`s i weighed them. The 16`s were about 76 pounds for the tire and wheel. The 20`s weighed 92 pounds each so with the extra weight and overall diameter you should notice slightly worse braking and acceleration.

It handles better due to the lower sidewall but ride quality wasn`t affected much at all.

As far as snow it all depends on what tire you get. I have cooper discoverer HT plus in 275/55/20 and they`re great in the snow/rain and good treadwear and run quiet on the highway.

 

[Yukongk]

Will my speedo be affected at all?

 

[Sasquatch]

Will my speedo be affected at all?

Yes. I can`t remember how off my speedometer was when i switched to 20`s but it wasn`t much, Maybe 5 mph.

If you plan on getting a tune it can be corrected.

 

[chauncey0337]

I think my speedo was off only about 2 mph.

 

[Screwd up 6]

Speedo won't change due to wheels size but only due to overall diameter of tire size u run