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20" wheel fitment

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Old Apr 19, 2020 | 09:26 AM
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Default 20" wheel fitment

Hey guys, Ive read up and down the forum about fitment on some 20' wheels/tires/on lowering springs but couldn't really find an answer. Hopefully someone can shed some light and has had the same setup.
I currently have a 15RC350 Fsport RWD with stock tires/rims/ on RSR Down Sus. Would like to change to F: 20x9 +30 / R: 20x10.5 +40 on RsR Super downs with a profile of 35 or 30. Would these cause any issues? Any help would be appreciated.
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Old Apr 20, 2020 | 06:37 AM
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I had this setup and did not have problems with it. I had the RSR Down Sus springs but only installed the fronts as I thought the rears looked perfect after adding a set of Niche Methos wheels with Nitto Inzo tires. Ran 20x9 et40 on 255/30/20 in the front and 20x10.5 et40 285/30/20 in the rear.
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Old Apr 20, 2020 | 07:35 AM
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Originally Posted by jonmonkey
I had this setup and did not have problems with it. I had the RSR Down Sus springs but only installed the fronts as I thought the rears looked perfect after adding a set of Niche Methos wheels with Nitto Inzo tires. Ran 20x9 et40 on 255/30/20 in the front and 20x10.5 et40 285/30/20 in the rear.
Was there any wheel gap or poke with those. I just spent yesterday putting on some Super downs... from the Down’s I got an additional 0.5in drop on stock...
but man it’s close. I would love it but would hate getting up the driveway.
if I go with a 20” on a 30 profile.. that’ll be an additional 0.7 inches.. you think that’ll clear it for the rear’s and fronts?





Last edited by DJTRC; Apr 20, 2020 at 07:42 AM. Reason: Additional
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Old Apr 20, 2020 | 08:16 AM
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Hard to say. When I got my new wheels I found out the they gave me the incorrect tire AR the first time around. They sold me 255/30/20 but the load rating is not enough and had to sell me 255/35/20. I do have a bit of rubbing with that and would imagine you would too with the super downs. You might want to consider going with a 19" rather than a 20".

Here is what my old set up looked like with the RSR down sus in the front only on 20" wheels.

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Old Apr 20, 2020 | 04:17 PM
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Hah. Just realize two things:
1) I got these Down Sus from you last year around this time

2) The Niche wheels you got are almost similar to the ones I got. Lexani came out with the spikes with rivets. I got the Black with Red Rivets.

Awesome. Thanks for the advice. Just changed out the Supers back to the downs. I’ll leave the rear and see how it fits.. hopefully, it won’t rub the fenders. I’ll post pics once I’m done.


Lexani Spikes gloss black with red rivets 20x9 +30, 20x10.5 +40
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Old Apr 21, 2020 | 06:32 AM
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Oh yeah, I didn't recognize the user name. Those wheels look awesome. Some silver calipers with red accents would look epic.
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Old Apr 21, 2020 | 10:58 PM
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[/QUOTE]

I've never seen someone with a 265/40 on the stock F-sport wheels, how do you like it? Did you go with a higher profile on the fronts as well?
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Old Apr 24, 2020 | 10:04 PM
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I went with the stock 235/40 in front. I tried it to see if it would cushion the road more plus delete a little of the gap. Riding though, comfort remains the same on the RsR downs. Appearance though; it looks like a woman with Fat fingers, but hardly noticeable with a change in 5mm.However, I did put them on the RsR Supers and they snugged up to the fender quite nicely.
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Old Apr 27, 2020 | 03:01 PM
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Originally Posted by DJTRC
I went with the stock 235/40 in front. I tried it to see if it would cushion the road more plus delete a little of the gap. Riding though, comfort remains the same on the RsR downs. Appearance though; it looks like a woman with Fat fingers, but hardly noticeable with a change in 5mm.However, I did put them on the RsR Supers and they snugged up to the fender quite nicely.
like a woman with fat fingers I might try this when I get my next set, I like the sound have having a little more meat to my tires.
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Old Feb 4, 2021 | 06:17 PM
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Originally Posted by DJTRC
I went with the stock 235/40 in front. I tried it to see if it would cushion the road more plus delete a little of the gap. Riding though, comfort remains the same on the RsR downs. Appearance though; it looks like a woman with Fat fingers, but hardly noticeable with a change in 5mm.However, I did put them on the RsR Supers and they snugged up to the fender quite nicely.
Hey, just wanna check in if you did push through with having the 20" wheels? And if the RSR Supers causes it to have rubbing issues?

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Old Feb 4, 2021 | 09:01 PM
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Originally Posted by Blaque Diamond Wheels
Hey, just wanna check in if you did push through with having the 20" wheels? And if the RSR Supers causes it to have rubbing issues?

***Mention You Are From The Forum For The Best Deals***
Check Out The*All NEW BD-F25

Phone: (818) 362-2300
E-Mail: Info@BlaqueDiamond.com
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20’s with the RSR Supers rubbed. So I went with the downs
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