Difference between 18" and 20" tires ?

Asked by Jun 03, 2013 at 09:52 AM about the 2008 Chevrolet Tahoe LTZ 4WD

Question type: Maintenance & Repair

Have to replace tires on my 2008 Tahoe LTZ having P265/65R18-112S tires.
I am told that I can select a 20" tires also, what is the difference ?

3 Answers

2 inches. Sure, you can select 20" tires but remember you will have to buy wheels also, and your speedometer will be off. For each turn of the wheel you will be going a little further than the wheel speed sensors 'think' when you go to a larger overall diameter. Other than that you should have no problems, just the added expense if you are willing to pay for four new rims that you will have to have

4 of 4 people found this helpful.

If you buy the same profile tire and go to 20" your speedometer will be off by 6.8%.. if your speedo shows 60 you are going 64 (round numbers)

4 of 4 people found this helpful.
685

I was going to say "About 2 inches". The guys ahead of me gave you great info. This will also affect the MPG, stopping distance and the amount of pressure put on all the equipment on your axles (brakes, axles, struts, shocks and the like). Otherwise, I don't see any real issues. It'll definitely make the car look very, very nice.

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

  • Difference between 18" and 20" tires ? 3 answers

    Have to replace tires on my 2008 Tahoe LTZ having P265/65R18-112S tires. I am told that I can select a 20" tires also, what is the difference ?

    2008 Chevrolet Tahoe LTZ 4WD

    -

    Maintenance & Repair

  • Starting and clusters 1 answer

    Why dose my Chevy Tahoe cluster don't work and start with key but will with automatic start after playing with radio wiring

    2002 Chevrolet Tahoe LS

    -

    Maintenance & Repair

  • Driving 07 Tahoe starts shaking cuts off and won't start start and cuts off again. HELP!!! 1 answer

    Driving shakes cuts off and won't start again. No warning appears to get gas and cuts off again. Now nothing.

    2007 Chevrolet Tahoe LT 4WD

    -

    Maintenance & Repair

  • Tahoe quitting and stalling 1 answer

    Car stutters at high speeds and dies at low speeds when coming to a stop. Replaced main computer, crank shaft sensor and cleaned throttle body ... Still have the problem. Has been through diagnost...

    2002 Chevrolet Tahoe Base 4WD

    -

    Maintenance & Repair

  • why does my tahoe pop and backfire 1 answer

    Tahoe pops and backfires every so often and seems like its only running on 6 or 7 cylinders

    1996 Chevrolet Tahoe 4 Dr LS SUV

    -

    Maintenance & Repair

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 32,888 nationwide Tahoe listings starting at $1,500.

ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 Tom Demyan
Tom Demyan
Reputation 820
#2 Rowefast
Rowefast
Reputation 810
#3 Lucia Taylor
Lucia Taylor
Reputation 530
View All

Related Models For Sale

Used GMC Yukon
405 Great Deals out of 20,356 listings starting at $1,495
Used Chevrolet Suburban
277 Great Deals out of 19,213 listings starting at $1,999
Used Cadillac Escalade
199 Great Deals out of 10,895 listings starting at $2,500
Used Chevrolet Silverado 1500
1,897 Great Deals out of 182,420 listings starting at $1,595
Used Ford Expedition
396 Great Deals out of 23,861 listings starting at $1,500
Used Ford Explorer
904 Great Deals out of 63,791 listings starting at $799
Used Ford F-150
2,109 Great Deals out of 192,316 listings starting at $290
Used Toyota 4Runner
230 Great Deals out of 19,232 listings starting at $2,195
Used GMC Yukon XL
216 Great Deals out of 12,512 listings starting at $1,495
Used Jeep Grand Cherokee
1,068 Great Deals out of 72,843 listings starting at $1,200
Used Dodge Durango
266 Great Deals out of 21,056 listings starting at $1,500
Used GMC Acadia
588 Great Deals out of 44,707 listings starting at $3,500
Used GMC Sierra 1500
768 Great Deals out of 68,175 listings starting at $1,700
Used Dodge Charger
529 Great Deals out of 28,513 listings starting at $2,500
Used Nissan Armada
136 Great Deals out of 9,060 listings starting at $2,991

Used Cars For Sale

2016 Chevrolet Tahoe LTZ 4WD For Sale
12 Great Deals out of 654 listings starting at $43,999
2015 Chevrolet Tahoe LTZ 4WD For Sale
17 Great Deals out of 869 listings starting at $33,000
2014 Chevrolet Tahoe LTZ 4WD For Sale
130 listings starting at $29,000
2013 Chevrolet Tahoe LTZ 4WD For Sale
11 Great Deals out of 276 listings starting at $22,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.