OEM LT wheel size.. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ajohnson · 10-03-2015, 12:16 AM

This may sound like a dumb question but i want to be absolutely certain before i pull the trigger and buy a new set of wheels.. I have a 2010 LT camaro and read almost everywhere the OEM wheels are 18", but then started seeing that they could come in 19" variant also. Is this true? here's where i feel like an idiot, I don't know if an 18" wheel is actually 18" in diameter.. I measured my wheel diameter and got a bit over 19"??? (I probably wasnt perfectly centered so id assume actual diameter was 19") but nonetheless I dont know if wheel sizes are actual true in size?? or if my wheels are simply 19's and not 18's like i thought they are...

lawman007 · 10-03-2015, 12:39 AM

Did you purchase the RS package with your 2010 LT?
Troy
**Edit**

Here is where you'll find the 'RS' badges.

Here are the 'RS' wheels.

And finally these are the GM Camaro factory steel wheels. These are what you usually got if you didn't order the 'RS' package up until 2013 or 2014. It changed when they split the LS trim level from LS to 1LS and 2LS.

Ok, I almost forgot, the OEM(factory steel wheels) come in one size and are the 18" size. The 'RS' wheels are 2 sizes front and rear and are the 19" size. You can always check the tire size stamped on the tires. The last set of digits(two of them) indicate the tire radius. Should say 18 or 19. Of course the Pirellis were included in the 'RS' package. If they are not Pirellis, you more than likely have BFGs(B.F. Goodrichs). I purchased the 'RS' package when I ordered mine in 2011. In 2012, I bought the factory steel wheels and BFGs on eBay. I use the factory steels as an all season tire. The Pirellis are only for summer driving, but you can drive them in the spring and fall too. In southern climates, you could get away with all year probably I'd ask an expert, information is still free. You need to find the speed rating. Don't exceed the speed rating if you can avoid it(Who are we kidding? You can avoid speeding.) Not sure what happens if you exceed these speed ratings, but I always thought it had to do with safety as well as load rating. But that's just me. Hope that helps!
Troy

OUR72GTO · 10-03-2015, 01:27 AM

Did you read the owners manual for YOUR car or the tire /wheel label inside the driver door?

lawman007 · 10-03-2015, 02:27 AM

Quote:

Originally Posted by OUR72GTO

Did you read the owners manual for YOUR car or the tire /wheel label inside the driver door?

There is also the coded label in the trunk. You can look up all the codes and find it. But also, PITA! I think the window sticker gives the tire size I think as well.

TheSmokingSuns · 10-03-2015, 04:41 AM

2010 1LS or 2LS: 18s
2010 1LT without RS: 18s
2010 2LT without RS: 19s
2010 1LT or 2LT with RS: 20s

rtcat600man · 10-03-2015, 05:40 AM

Quote:

Originally Posted by TheSmokingSuns

2010 1LS or 2LS: 18s
2010 1LT without RS: 18s
2010 2LT without RS: 19s
2010 1LT or 2LT with RS: 20s

All true.

OP. you can put any of the above sizes on your Camaro 18, 19 or 20's.

What you are looking for is the right bolt pattern and offsets.

You need a 5 x 120 bolt pattern and approx +20 to + 35 offset, depending on wheel width and look.

Example, I a running with 275/40/20 in all four corners using a +20 offset to help fill the wheel well.

Good Luck, keep us posted with your decisions or if you have more questions ask away.

CamaroinCLE · 10-03-2015, 06:15 AM

read the tire size on the sidewall and that will tell you what you have.

2010SLVRBULIT · 10-03-2015, 06:38 AM

..important to know if you are going to use your original tires as well. I upgraded my rims, and mounted them onto the factory RS 20" tires.

ajohnson · 10-04-2015, 01:02 AM

Im an idiot, completed passed up ever even thinking about the numbers on the tires. DOH! once i saw that comment i facepalmed and checked the tires. Sure enough, their 18s. The outter rim diamter is over 19" though, so they must go over the inner center bead of the wheel to get the 18"? Not sure. I stuck with 18s as the car came with a nice brand new set of rubbers. Down the road i may move to 20s but these will be fine. I got a set of black zl1 style wheels.... cant wait!

CamaroinCLE · 10-04-2015, 06:10 AM

Quote:

Originally Posted by ajohnson

Im an idiot, completed passed up ever even thinking about the numbers on the tires. DOH! once i saw that comment i facepalmed and checked the tires. Sure enough, their 18s. The outter rim diamter is over 19" though, so they must go over the inner center bead of the wheel to get the 18"? Not sure. I stuck with 18s as the car came with a nice brand new set of rubbers. Down the road i may move to 20s but these will be fine. I got a set of black zl1 style wheels.... cant wait!

Glad to be of help..

Norm Peterson · 10-04-2015, 06:50 AM

Quote:

Originally Posted by ajohnson

. . . I don't know if an 18" wheel is actually 18" in diameter.. I measured my wheel diameter and got a bit over 19"???

Time for a little wheel tech.

The 18" or any other car or light truck wheel size is measured where the tire's bead seats against the wheel, which is located down inside the flanges. Since the flanges are half an inch or a little more tall, that's why when you measure the overall outer wheel diameter you end up with about an inch more showing on the tape than the nominal wheel size says it is (18" nominal plus two flange heights).

Norm

10-03-2015, 12:16 AM	#1
ajohnson Drives: 2010 Camaro 1LT Join Date: Sep 2015 Location: Nebraska Posts: 261 View My Garage	OEM LT wheel size.. This may sound like a dumb question but i want to be absolutely certain before i pull the trigger and buy a new set of wheels.. I have a 2010 LT camaro and read almost everywhere the OEM wheels are 18", but then started seeing that they could come in 19" variant also. Is this true? here's where i feel like an idiot, I don't know if an 18" wheel is actually 18" in diameter.. I measured my wheel diameter and got a bit over 19"??? (I probably wasnt perfectly centered so id assume actual diameter was 19") but nonetheless I dont know if wheel sizes are actual true in size?? or if my wheels are simply 19's and not 18's like i thought they are...

10-03-2015, 12:39 AM	#2
lawman007 Panama-Gulf War Vet Drives: '11 SW 1LT/RS 6M Join Date: Apr 2011 Location: From Carmichael, CA to Matthews, NC 01/2021 Posts: 769	Did you purchase the RS package with your 2010 LT? Troy Edit Here is where you'll find the 'RS' badges. Here are the 'RS' wheels. And finally these are the GM Camaro factory steel wheels. These are what you usually got if you didn't order the 'RS' package up until 2013 or 2014. It changed when they split the LS trim level from LS to 1LS and 2LS. Ok, I almost forgot, the OEM(factory steel wheels) come in one size and are the 18" size. The 'RS' wheels are 2 sizes front and rear and are the 19" size. You can always check the tire size stamped on the tires. The last set of digits(two of them) indicate the tire radius. Should say 18 or 19. Of course the Pirellis were included in the 'RS' package. If they are not Pirellis, you more than likely have BFGs(B.F. Goodrichs). I purchased the 'RS' package when I ordered mine in 2011. In 2012, I bought the factory steel wheels and BFGs on eBay. I use the factory steels as an all season tire. The Pirellis are only for summer driving, but you can drive them in the spring and fall too. In southern climates, you could get away with all year probably I'd ask an expert, information is still free. You need to find the speed rating. Don't exceed the speed rating if you can avoid it(Who are we kidding? You can avoid speeding.) Not sure what happens if you exceed these speed ratings, but I always thought it had to do with safety as well as load rating. But that's just me. Hope that helps! Troy __________________ Last edited by lawman007; 10-03-2015 at 02:01 AM.

10-03-2015, 01:27 AM	#3
OUR72GTO 2010 SIM Beige RS 6M Drives: SIM RS 6M 66 Corvair Silverado LTZ Join Date: Oct 2008 Location: Kamloops,British Columbia Posts: 4,677	Did you read the owners manual for YOUR car or the tire /wheel label inside the driver door? __________________ CAMARO.. 2010 The Heart Beat is back in CHEVROLET Now let's put it back in America

10-03-2015, 04:41 AM	#5
TheSmokingSuns Drives: 2017 Camaro 2SS, 2011 Camaro 2LT Join Date: Jan 2014 Location: USA Posts: 640	2010 1LS or 2LS: 18s 2010 1LT without RS: 18s 2010 2LT without RS: 19s 2010 1LT or 2LT with RS: 20s

10-03-2015, 06:15 AM	#7
CamaroinCLE Drives: 2014 CRT LT Join Date: Jul 2015 Location: Cleveland Posts: 151	read the tire size on the sidewall and that will tell you what you have.

10-03-2015, 06:38 AM	#8
2010SLVRBULIT Drives: G5(LLT) & C6(LS3) Join Date: Apr 2009 Location: MARS Posts: 7,527 View My Garage	..important to know if you are going to use your original tires as well. I upgraded my rims, and mounted them onto the factory RS 20" tires.

10-04-2015, 01:02 AM	#9
ajohnson Drives: 2010 Camaro 1LT Join Date: Sep 2015 Location: Nebraska Posts: 261 View My Garage	Im an idiot, completed passed up ever even thinking about the numbers on the tires. DOH! once i saw that comment i facepalmed and checked the tires. Sure enough, their 18s. The outter rim diamter is over 19" though, so they must go over the inner center bead of the wheel to get the 18"? Not sure. I stuck with 18s as the car came with a nice brand new set of rubbers. Down the road i may move to 20s but these will be fine. I got a set of black zl1 style wheels.... cant wait!