20x10 20x12 on 1SS - NO MRC

C4MSS · 04-06-2019, 04:29 PM

I'm looking at the set up below but I'm not sure if there will be any rear fitment issues:

20x10 front on 285/30 Continental Extreme Contact Sport

20x12 rear on 305/30 Continental Extreme Contact Sport

Car is stock. Suggestions are appreciated.

RideZX6R · 04-06-2019, 06:43 PM

Short answer - it will fit as long as the 20x12 isn't some weird offset (which you'd have to post to be sure)

Curious why you would go to a 12in wheel only to run a 305? Can easily run a 325 with that... Seems like a waste

Alpha1BC · 04-06-2019, 10:10 PM

Quote:

Originally Posted by osole002

Thanks for the quick reply. I'm looking at 3 possible 20x12 wheels with 40, 41, and 45mm offsets respectively. The front ones have all the 20mm OEM offset of the SS 1LE

I don't know much about tires sizes so I was playing it safe with the 305s to avoid any rubbing issues.

Could just go with a 20x11 and match the SS 1LE size in the rear as well since you're planning on a tire that's the size of the SS 1LE tire. Shouldn't have any issue with rubbing there, either.

RideZX6R · 04-07-2019, 02:12 AM

Your offsets should be fine, so should 325s... just make sure it's a 325/30 and not a 325/35.... 35 series will have rubbing issues.

Markoz28 · 04-07-2019, 01:03 PM

Id love to put a 325 on as well but wasn’t sure if it would fit.

BradfordCamaro · 04-07-2019, 03:58 PM

12's don't look good.
Doesnt matter what offset. They will stick out past the fender.

You run a 305 or 325 so the tire is stretched to help hide the wheel that is sticking way past the fender.
If you put on a proper 345 it would be obvious how far they stick out.
Go 11.5" or 11. Some have put a 325 on the 11 and it doesn't look to bad.

You will be disappointed with the 12.

RideZX6R · 04-07-2019, 06:01 PM

Quote:

Originally Posted by BradfordCamaro

12's don't look good.
Doesnt matter what offset. They will stick out past the fender.

You run a 305 or 325 so the tire is stretched to help hide the wheel that is sticking way past the fender.
If you put on a proper 345 it would be obvious how far they stick out.
Go 11.5" or 11. Some have put a 325 on the 11 and it doesn't look to bad.

You will be disappointed with the 12.

I personally ran 19x12s with a 325 and they were flush... (Offset was oem ZL1-1LE However I will say that because of the contour of the rear fender/bumper if you don't have rock guards then you're gonna have a lot of rash back there

BradfordCamaro · 04-07-2019, 08:28 PM

I believe with the 19's you can get them in deeper. So less poke

RideZX6R · 04-07-2019, 10:27 PM

diameter doesn't really matter with "poke" as much as offset does

cmeJATT · 04-07-2019, 11:07 PM

Go 20x11 with 305 or 315 tire ..

No need to go 20x12 ....

C4MSS · 04-09-2019, 11:06 PM

I ended up going with 20x10.5 front and 20x12 rear on blank wheels with custom made cnc'd offsets. Tires are 285/30 315/30. This package fits like a glove.
I'll post pictures soon.

Thanks everyone for the replies

RUPP250 · 04-12-2019, 05:14 PM

Can you post a pic showing how flush they are?

C4MSS · 04-13-2019, 06:26 PM

Quote:

Originally Posted by RUPP250

Can you post a pic showing how flush they are?

The front looks just like the 1LE's front with the tires' sidewall showing a hair pass the fender.

The 12s in the rear look the same as the front in my case; whereas the 11s in the 1LE rear are flushed with the fender.

BradfordCamaro · 04-13-2019, 10:10 PM

New wheels are new wheels.
Congrats.

What are the wheels? Specs?

04-06-2019, 04:29 PM	#1
C4MSS Drives: 2017 Camaro SS Join Date: Mar 2017 Location: Hialeah Posts: 7 View My Garage	20x10 20x12 on 1SS - NO MRC I'm looking at the set up below but I'm not sure if there will be any rear fitment issues: 20x10 front on 285/30 Continental Extreme Contact Sport 20x12 rear on 305/30 Continental Extreme Contact Sport Car is stock. Suggestions are appreciated. Last edited by C4MSS; 04-10-2019 at 12:33 AM.

04-06-2019, 06:43 PM	#2
RideZX6R Probably tired right now Drives: 1Lap1LE \| EV6 FE \| 18 F150 Join Date: Sep 2010 Location: At the office (CLT, NC) Posts: 1,133	Short answer - it will fit as long as the 20x12 isn't some weird offset (which you'd have to post to be sure) Curious why you would go to a 12in wheel only to run a 305? Can easily run a 325 with that... Seems like a waste __________________ -Seven '17 SS 1LE - 1LAP 1LE (Now with more 427!) '18 F150 Platinum Powerstroke diesel '22 Kia EV6 First Edition '18 RS3 (1 of 2) Cumulus Blue '24 911 T (ordered) Formers... '19 RS5 Sportback Sonoma Green \| '07 Cayman S 6MT \| '16 Audi S3 Prestige Viper Green (APR Stage 3+) \| '19 Mustang Shelby GT350R \| '17 SS 1LE MBM 575whp all-motor

04-07-2019, 02:12 AM	#4
RideZX6R Probably tired right now Drives: 1Lap1LE \| EV6 FE \| 18 F150 Join Date: Sep 2010 Location: At the office (CLT, NC) Posts: 1,133	Your offsets should be fine, so should 325s... just make sure it's a 325/30 and not a 325/35.... 35 series will have rubbing issues. __________________ -Seven '17 SS 1LE - 1LAP 1LE (Now with more 427!) '18 F150 Platinum Powerstroke diesel '22 Kia EV6 First Edition '18 RS3 (1 of 2) Cumulus Blue '24 911 T (ordered) Formers... '19 RS5 Sportback Sonoma Green \| '07 Cayman S 6MT \| '16 Audi S3 Prestige Viper Green (APR Stage 3+) \| '19 Mustang Shelby GT350R \| '17 SS 1LE MBM 575whp all-motor

04-07-2019, 03:58 PM	#6
BradfordCamaro SABIO Drives: 2016 CAMARO 1SS Join Date: Jul 2015 Location: Bradford, ON Posts: 5,012	12's don't look good. Doesnt matter what offset. They will stick out past the fender. You run a 305 or 325 so the tire is stretched to help hide the wheel that is sticking way past the fender. If you put on a proper 345 it would be obvious how far they stick out. Go 11.5" or 11. Some have put a 325 on the 11 and it doesn't look to bad. You will be disappointed with the 12. __________________

04-07-2019, 08:28 PM	#8
BradfordCamaro SABIO Drives: 2016 CAMARO 1SS Join Date: Jul 2015 Location: Bradford, ON Posts: 5,012	I believe with the 19's you can get them in deeper. So less poke __________________

04-07-2019, 01:03 PM	#5
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	Id love to put a 325 on as well but wasn’t sure if it would fit.

04-07-2019, 10:27 PM	#9
RideZX6R Probably tired right now Drives: 1Lap1LE \| EV6 FE \| 18 F150 Join Date: Sep 2010 Location: At the office (CLT, NC) Posts: 1,133	diameter doesn't really matter with "poke" as much as offset does __________________ -Seven '17 SS 1LE - 1LAP 1LE (Now with more 427!) '18 F150 Platinum Powerstroke diesel '22 Kia EV6 First Edition '18 RS3 (1 of 2) Cumulus Blue '24 911 T (ordered) Formers... '19 RS5 Sportback Sonoma Green \| '07 Cayman S 6MT \| '16 Audi S3 Prestige Viper Green (APR Stage 3+) \| '19 Mustang Shelby GT350R \| '17 SS 1LE MBM 575whp all-motor

04-07-2019, 11:07 PM	#10
cmeJATT Drives: SS-6-SPD Join Date: Jan 2017 Location: New Jersey Posts: 1,364	Go 20x11 with 305 or 315 tire .. No need to go 20x12 ....

04-09-2019, 11:06 PM	#11
C4MSS Drives: 2017 Camaro SS Join Date: Mar 2017 Location: Hialeah Posts: 7 View My Garage	Set up ordered I ended up going with 20x10.5 front and 20x12 rear on blank wheels with custom made cnc'd offsets. Tires are 285/30 315/30. This package fits like a glove. I'll post pictures soon. Thanks everyone for the replies Last edited by C4MSS; 04-12-2019 at 04:44 PM.

04-12-2019, 05:14 PM	#12
RUPP250 Drives: 16 SILVER 2SS Join Date: Nov 2018 Location: Livermore Posts: 15	Can you post a pic showing how flush they are?

04-13-2019, 10:10 PM	#14
BradfordCamaro SABIO Drives: 2016 CAMARO 1SS Join Date: Jul 2015 Location: Bradford, ON Posts: 5,012	New wheels are new wheels. Congrats. What are the wheels? Specs? __________________

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