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Old 07-09-2019, 12:03 AM   #1
PumpinIron
 
Drives: 2013 Camaro 2SS
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Location: Salem, OR
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What offset do I need for aftermarket wheels?

When purchasing aftermarket wheels (20x9 and 20x10.5) what offset should I be looking for so that the wheels / tires are flush with the fender. Close enough to look good, but not close enough to need to cut or roll the fenders.

The ones I was looking at are 20mm in the front and 40mm in the rear.
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Old 07-25-2019, 02:39 PM   #2
Eboelz
 
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new here.. been searching and this came up.. would also like a little info.. have a set of 20x9 35mm and 20x10.5 42mm sitting in the garage i was thinking of trying
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Old 07-25-2019, 06:03 PM   #3
Shakamanno
 
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I have 20x10.5 305/35/20 on rear with 38 offset and fronts 20x9 275/40/20 with 20 offset. Ferrada FR2. No need of fender roll and no rubbing. No issues at all.
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Old 07-30-2019, 11:52 PM   #4
Pearlj10
 
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Agreed. The 1LE wheel specs of 20x10 +23 front and 20x11 +43 rear are a great starting point. That is what I run now (MRR 017 wheels) and the fronts stick out a slightly more than I’d prefer. That being said, the handling is amazing! Running 275/40/20 fronts and 295/40/20 rears. Not even close to rubbing but not lowered, either. Flame me over the 40s, I’m ready for it!

Quote:
Originally Posted by Shakamanno View Post
I have 20x10.5 305/35/20 on rear with 38 offset and fronts 20x9 275/40/20 with 20 offset. Ferrada FR2. No need of fender roll and no rubbing. No issues at all.
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Old 10-14-2019, 01:59 PM   #5
Carlos_MRRWheelsInc

 
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if doing a 20x9 /20x10.5 I would say 25et front /38et rears.
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Old 10-14-2019, 03:27 PM   #6
G8One2
 
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I wish there were a sticky on what fits and doesn't fit. I too have searched and never find anything exact, and the info I come across is always kinda of not complete, leaving me with more questions.
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Old 10-14-2019, 04:12 PM   #7
Deputy347k9

 
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I currently rotate between 4 sets of wheels, 3 sets are OEM while the 4th is after market, as follows:

1. 21" RPO Code VZP, front wheels 8.5" with a 38 MM off set, tires 245/40/21
rear wheels 9.5. with a 42 MM off set, tires 275/35/21

2. 21" RPO Code VZN (square setup) all 4 corners 8.5" with 38 MM off set
tires 245/40/21

3. 20" 2019 OEM black wheels (square setup) 8.5", 25 MM off set, tires 245/40/21

4. 20" After market ZL1 wheels (square setup) 10" width 35 MM off set, tires
265/35/20
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Old 10-14-2019, 05:36 PM   #8
Carlos_MRRWheelsInc

 
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Quote:
Originally Posted by Deputy347k9 View Post
I currently rotate between 4 sets of wheels, 3 sets are OEM while the 4th is after market, as follows:

1. 21" RPO Code VZP, front wheels 8.5" with a 38 MM off set, tires 245/40/21
rear wheels 9.5. with a 42 MM off set, tires 275/35/21

2. 21" RPO Code VZN (square setup) all 4 corners 8.5" with 38 MM off set
tires 245/40/21

3. 20" 2019 OEM black wheels (square setup) 8.5", 25 MM off set, tires 245/40/21

4. 20" After market ZL1 wheels (square setup) 10" width 35 MM off set, tires
265/35/20
oh man now thats a list
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Old 10-14-2019, 10:29 PM   #9
Deputy347k9

 
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Quote:
Originally Posted by Carlos_MRRWheelsInc View Post
oh man now thats a list
I guess I have a "thing" for wheels. So much that I recently purchased an Autel TS601 TPMS tool. I have on hand 12 MX sensors on hand just incase! Powder coater is delivering my 20"X10" ZL1 replicas this coming Friday evening. There goes 4 sensors and another set of tires! Guess I could have far worse addictions.
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Old 10-15-2019, 03:53 AM   #10
StingrayblueSS
 
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+43 rear +23 front I have 315s in the rear and they don't rub.
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Old 10-15-2019, 05:49 AM   #11
G8One2
 
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Quote:
Originally Posted by StingrayblueSS View Post
+43 rear +23 front I have 315s in the rear and they don't rub.
Are you lowered? Or stock height?
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Old 10-16-2019, 12:42 AM   #12
StingrayblueSS
 
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Originally Posted by G8One2 View Post
Are you lowered? Or stock height?
Lowered 1"
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Old 10-20-2019, 06:08 PM   #13
Brilei5
 
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https://photos.google.com/album/AF1Q...ilmcOi4cPugx0d
20 X 9.5 +18 front
20 x 11 +38 rear
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