IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

IS350 F-Sport with 19" Concave Concept wheels

Old 07-20-13, 03:24 AM
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saferisk
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Thumbs up IS350 F-Sport with 19" Concave Concept wheels

Hi guys,

Trial fitted a set of concave concept 19" Split five spoke wheels today for fun! Picked up the car yesterday and thought I'd give a friend of mine's workshop a visit! Sorry for the not so good pics!

Now I cant decide between comfort 19" or baller 20"!!!!!
Attached Thumbnails IS350 F-Sport with 19" Concave Concept wheels-dsc_0797.jpg   IS350 F-Sport with 19" Concave Concept wheels-dsc_0822.jpg  
Old 07-20-13, 04:26 AM
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corradoMR2
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Sharp! The 19s you have on fill the wheel wells perfectly and your ride won't be as harsh plus you'd save a few bucks as well I'm sure. What size tires are those?

Last edited by corradoMR2; 07-20-13 at 05:18 AM.
Old 07-20-13, 05:08 AM
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airborn
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Fits nice!

Do you know the exact dimensions?
Old 07-20-13, 06:02 AM
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unc879wins
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Straight 19's with no suspension adjustment? Nice.
Old 07-20-13, 06:30 AM
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Jlesz
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who make's those wheels, i think they suit the car a lot
Old 07-20-13, 08:41 AM
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saferisk
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Hi guys,
I'm also running prototype springs but the brand of the wheel is Concave Concept and after we get the best fitting tyres and offsets working for 19" I'll post it up cause I don't want others to run the same set up and have any issues!

In all likelihood I'll be trying to keep a similar ratio as stock so perhaps 245 front and 265 rear with a little stretch, comfort and ability to have some fun! Not too keen on running huge rubber in the rear as I would not like to introduce any understeer or stray too far from factory handling but at same time changing the aesthetics a bit.

Some extra info is the it is the is350 and there is about half inch clearence at front between the spoke and 4 pot caliper. Concave Concept don't have a website up yet but they are Taiwanese made and Australian designed wheel. Funnily enough the 19" were much lighter than the factory f-sport wheel. I'll see if I can get the weight info too.

Last edited by saferisk; 07-20-13 at 08:48 AM.
Old 07-20-13, 10:17 AM
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John510
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Got any side pics without the Instagram filter?
Old 07-20-13, 10:38 AM
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saferisk
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Originally Posted by John510
Got any side pics without the Instagram filter?
Not right now
Old 07-20-13, 12:29 PM
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Looks good!
Old 07-20-13, 12:33 PM
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Where can I get some prototype springs? I don't mind experimenting
Old 07-20-13, 04:21 PM
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LEXUS1904
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Originally Posted by saferisk
Hi guys,
I'm also running prototype springs but the brand of the wheel is Concave Concept and after we get the best fitting tyres and offsets working for 19" I'll post it up cause I don't want others to run the same set up and have any issues!

In all likelihood I'll be trying to keep a similar ratio as stock so perhaps 245 front and 265 rear with a little stretch, comfort and ability to have some fun! Not too keen on running huge rubber in the rear as I would not like to introduce any understeer or stray too far from factory handling but at same time changing the aesthetics a bit.

Some extra info is the it is the is350 and there is about half inch clearence at front between the spoke and 4 pot caliper. Concave Concept don't have a website up yet but they are Taiwanese made and Australian designed wheel. Funnily enough the 19" were much lighter than the factory f-sport wheel. I'll see if I can get the weight info too.
did 285/25/20 fit in the rear?
Old 07-20-13, 05:37 PM
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saferisk
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Originally Posted by John510
Where can I get some prototype springs? I don't mind experimenting
Hi John510,
A bit hard to say given I'm in Australia, from what I've read your best bet would be keeping in touch with rs*r USA.
Old 03-16-14, 11:56 PM
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nano10
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How do I get these wheels in the US? Been looking for a 19" split spoke that is concave. They may do just the trick!
Old 03-17-14, 06:23 AM
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FSPORTJC
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Originally Posted by nano10
How do I get these wheels in the US? Been looking for a 19" split spoke that is concave. They may do just the trick!
I was wondering the same! I tried looking around the whole web for "Concave Concept" wheels and could not locate these anywhere. They look spot on perfect on the 3iS.. all other cast companies only offer split 5 spoke in 20 inch and 20s are too big for our cars!
Old 03-17-14, 09:02 AM
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Here are the wheels, i think.....

http://www.ontherunmotorsports.com/i...eels&Itemid=70

You can also find a couple sets on eBay but they are all in Australia

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