Swapping 21" for 20" rims (2012 LT) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

PopDeer · 05-28-2022, 12:07 PM

Hello everyone,

I'm looking into replacing my 21" OEM black aluminum 5-spoke rims with 20" rims. The tire options available for the 21" rims are too expensive and it's my understanding that there is a wider and less expensive selection available for 20" tires. I'm by no means an expert when it comes to my car, so I was wondering if anyone could help check my understanding. I have the following 21" rims on my car now: https://www.detroitwheelandtire.com/...7-pbp-a-f.html with 245/40-ZR21 tires on each. I would like to replace these with the black 20" rims that were available with the RS package (maybe it was the Transformer edition). I've been looking at these: https://www.detroitwheelandtire.com/...-pvd-f-ow.html (20 x 8").

Here's a few questions I have:

Will there be any issues replacing the 21" rims with 20"? I would guess going down in size is always safe.
Is it worth buying factory OEM wheels? Are cheaper replicas worth considering? I will be selling my 21" rims to account for some of the cost.
With the 20" rims I was going to go with a square setup of 245/45-20 tires. Any problems with that? Reference: https://www.camaro5.com/forums/showthread.php?t=62838
Do I need any parts besides the 20" rims and new tires?

Thanks so much, I appreciate any advice anyone can offer.

Mr2Hard2See · 05-28-2022, 07:05 PM

It’s safe to go to 20” or 22” from the original 21” you had. I had the 21” wheel/tire setup but switched to 22”. 1 thing for sure is an 8” wheel seems quite thin. In front you could run a 9” or 9.5” and in the rear do anything from 9” to 11”. More often ppl seems to run a 9.5/10” search around the forum and you’ll see the different combos available and learn what offset folks have used without tire rubbing issues.

My top pic is 21”
2nd pic 22”
Last pic 20”

1JEWLDSSRS · 05-29-2022, 09:33 AM

Looks good in all the pics, but REALLY great with the 20" Welds!! They really wake up the cars look!! Nice bro. And for the op, the 20's are the way to go. Much more out ther to be had combo wise. And lower pricing.

PopDeer · 06-01-2022, 09:43 AM

Thanks for the responses! I appreciate it! It’s great to see pictures of the different sized rims, especially including the ones I have! Thanks!

05-28-2022, 12:07 PM	#1
PopDeer Drives: Camaro LT 2012 Join Date: Dec 2013 Location: Kansas City Posts: 6	Swapping 21" for 20" rims (2012 LT) Hello everyone, I'm looking into replacing my 21" OEM black aluminum 5-spoke rims with 20" rims. The tire options available for the 21" rims are too expensive and it's my understanding that there is a wider and less expensive selection available for 20" tires. I'm by no means an expert when it comes to my car, so I was wondering if anyone could help check my understanding. I have the following 21" rims on my car now: https://www.detroitwheelandtire.com/...7-pbp-a-f.html with 245/40-ZR21 tires on each. I would like to replace these with the black 20" rims that were available with the RS package (maybe it was the Transformer edition). I've been looking at these: https://www.detroitwheelandtire.com/...-pvd-f-ow.html (20 x 8"). Here's a few questions I have: Will there be any issues replacing the 21" rims with 20"? I would guess going down in size is always safe. Is it worth buying factory OEM wheels? Are cheaper replicas worth considering? I will be selling my 21" rims to account for some of the cost. With the 20" rims I was going to go with a square setup of 245/45-20 tires. Any problems with that? Reference: https://www.camaro5.com/forums/showthread.php?t=62838 Do I need any parts besides the 20" rims and new tires? Thanks so much, I appreciate any advice anyone can offer. Last edited by PopDeer; 05-28-2022 at 12:35 PM.

05-28-2022, 07:05 PM	#2
Mr2Hard2See Instagram: Mr2Hard2See Drives: 2011 2SS/ RS Join Date: Apr 2018 Location: SF Bay Area Posts: 691	It’s safe to go to 20” or 22” from the original 21” you had. I had the 21” wheel/tire setup but switched to 22”. 1 thing for sure is an 8” wheel seems quite thin. In front you could run a 9” or 9.5” and in the rear do anything from 9” to 11”. More often ppl seems to run a 9.5/10” search around the forum and you’ll see the different combos available and learn what offset folks have used without tire rubbing issues. My top pic is 21” 2nd pic 22” Last pic 20” Attached Images __________________ YOUTUBE CHANNEL: Mr2Hard2See LSA blower BTR stg 2 cam 227/242 BTR dual springs pushrods lifters retainers etc Che bronze trunnion Ls3 timing/valley cover Dod/vvt delete Dsx e85 Dsx aux fuel pump Id1050x injectors ZL1 fuel pump, Griptech 2.55 pulley, Solo performance Mach ll 2.5 catback exhaust 1 7/8th Lt headers

05-29-2022, 09:33 AM	#3
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,439	Looks good in all the pics, but REALLY great with the 20" Welds!! They really wake up the cars look!! Nice bro. And for the op, the 20's are the way to go. Much more out ther to be had combo wise. And lower pricing. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

06-01-2022, 09:43 AM	#4
PopDeer Drives: Camaro LT 2012 Join Date: Dec 2013 Location: Kansas City Posts: 6	Thanks for the responses! I appreciate it! It’s great to see pictures of the different sized rims, especially including the ones I have! Thanks!