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      12-21-2017, 10:11 AM   #1
Mnite_S63
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21" Wheel Owners

Wanted to inquire your thoughts on running 21's with 25/35 tires.

How is the ride quality?

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      12-21-2017, 10:45 PM   #2
Iluvspl
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It’s stiff and make sure you have good roads where you will be driving. I live in Miami and am constantly having to watch the road since they are so bad here.
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      12-22-2017, 12:37 PM   #3
mastatikle
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25/35? I’m running 325/30/21 (looks good and better than stock ride quality) and 275/35/21 in front but it rubs. I need to down to 255/35/21 in the front. I would not reccomend the thin sidewalls, looks funny to me on this car.
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      12-22-2017, 01:51 PM   #4
Iluvspl
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I would assume you are going to modify the suspension as well? When doing 21" wheels I think most will agree you will have to lower the car to some degree for the best look. the H&R HAS is a great way to go. I was not going to lower mine when I had the wheels installed but it just didn't look right.
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      12-22-2017, 10:42 PM   #5
Mnite_S63
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It will be 265/30 and 305/35

Looking into lowering maybe KW Has
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      12-23-2017, 11:44 AM   #6
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Quote:
Originally Posted by Iluvspl View Post
I would assume you are going to modify the suspension as well? When doing 21" wheels I think most will agree you will have to lower the car to some degree for the best look. the H&R HAS is a great way to go. I was not going to lower mine when I had the wheels installed but it just didn't look right.
Agreed... Wheel gap is way too large with 21's on it. I also went with the KW HAS kit.
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      12-24-2017, 12:16 PM   #7
Mnite_S63
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How is the ride quality of the KW HAS compared to stock?

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      12-24-2017, 02:54 PM   #8
flaury23
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I just installed my Kw has system and it's amazing. I can't tell any ride quality difference.
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      12-25-2017, 12:40 PM   #9
14M6GCoupe
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What would be the best side of tires for 21 inch wheels for a gc any body?

Last edited by 14M6GCoupe; 12-25-2017 at 10:56 PM..
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      12-26-2017, 11:23 PM   #10
mastatikle
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Quote:
Originally Posted by 14M6GCoupe View Post
What would be the best side of tires for 21 inch wheels for a gc any body?
I’m running 325/30/21 on stock competition package. Looks perfect. And a good ride. The issue is finding the right front tire to work.
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      12-28-2017, 07:53 AM   #11
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Quote:
Originally Posted by mastatikle View Post
I’m running 325/30/21 on stock competition package. Looks perfect. And a good ride. The issue is finding the right front tire to work.
What u have on the front what size tire? Looks real good on the rear 👌🏻👌🏻
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      12-28-2017, 02:39 PM   #12
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Quote:
Originally Posted by 14M6GCoupe View Post
What u have on the front what size tire? Looks real good on the rear 👌🏻👌🏻
That’s where things get tricky. Originally had 255/30/21 on front to match a 25 in rear that I never went with. Car trans wouldn’t shift right, front tire diameter was too small compared to rear. 40miles later I then ordered 275/35/21 which is almost perfect match in diameter but rubs a decent bit on tight turns. The best size for front to match 325/30/21 rear is 255/35/21. I wasn’t thinking when I was ordering all these tires, just wanted it done. Better ride than 20’s for sure, and nothing like leaving a pair of 325 wide trail marks behind you lol
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      12-29-2017, 06:52 PM   #13
14M6GCoupe
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Thanks for ur help my man! I have a gc thats what we talking about rite? Dnt want to order the wrong tire
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      12-29-2017, 07:19 PM   #14
mastatikle
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Quote:
Originally Posted by 14M6GCoupe View Post
Thanks for ur help my man! I have a gc thats what we talking about rite? Dnt want to order the wrong tire
Yes if you look at the pictures I posted my car has 4 doors lol. It also depends if you have the competition pack or not. It sits lower so “looks better” because less wheel gap. 325/30/21 will work in rear perfectly. 255/35/21 should work without rub. I can’t guarantee front won’t rub. I haven’t bought them yet to check.
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      12-30-2017, 03:08 PM   #15
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Quote:
Originally Posted by mastatikle View Post
Yes if you look at the pictures I posted my car has 4 doors lol. It also depends if you have the competition pack or not. It sits lower so “looks better” because less wheel gap. 325/30/21 will work in rear perfectly. 255/35/21 should work without rub. I can’t guarantee front won’t rub. I haven’t bought them yet to check.
Didnt notice in the picture thankz for ur help 💪🏻👌🏻
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      01-05-2018, 01:11 PM   #16
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Quote:
Originally Posted by mastatikle View Post
Yes if you look at the pictures I posted my car has 4 doors lol. It also depends if you have the competition pack or not. It sits lower so “looks better” because less wheel gap. 325/30/21 will work in rear perfectly. 255/35/21 should work without rub. I can’t guarantee front won’t rub. I haven’t bought them yet to check.
U never try 275 30 21 on the front?
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      03-20-2018, 07:01 AM   #17
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what tire pressure are you guys running on 21s? Tire shop here told me 35 front 38 rears. Curious what others are running.
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      03-20-2018, 10:46 AM   #18
Iluvspl
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i like a little more pressure since the sidewalls are so thin. Im 38 front and 39 rear.
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