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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Why are wheels never flush with fender?



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      04-07-2011, 09:26 AM   #1
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Why are wheels never flush with fender?

Other than a Porsche GT3, I dont think I've ever seen a new car with wheels even close to flush. Does anyone have an answer?
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      04-07-2011, 09:28 AM   #2
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E90/E92 ZCP M3.


Maybe not herrafrush, but pretty close for a "stock" car.
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      04-07-2011, 09:30 AM   #3
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mmm you sure you looked properly? Or maybe you talk only about stock cars not being flush?

Do some research online for hellaflush.

All the aftermarket wheels I bought in my life had to be flush w/o spacers. But if they're not, a set of spacers could help you getting closer to the fender; and at the same time, getting some more room for clearance.
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      04-07-2011, 09:33 AM   #4
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go for after market wheels
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      04-07-2011, 09:33 AM   #5
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Too much of a chance the wheels will rub and damage the panels....then the auto maker has to cover the damage because of a poor design.

The GT3 is a light car and has a pretty stiff suspension.
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      04-07-2011, 09:36 AM   #6
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Quote:
Originally Posted by ********* View Post
Too much of a chance the wheels will rub and damage the panels....then the auto maker has to cover the damage because of a poor design.

The GT3 is a light car and has a pretty stiff suspension.


The GT3 suspension geometry causes the wheels to go up and in on compression so they don't rub.
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      04-07-2011, 09:39 AM   #7
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I mean new cars. Look at Ferrari, Porsche, Maseratti....virtually every car maker in the world. I always get aftermarket wheels to fix the problem and can"t understand why most of this gap can't be filled at the factory. Look at Maser coupe. Porsche Boxster.....
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      04-07-2011, 09:41 AM   #8
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Perhaps because those manufacturers make more performance-oriented automobiles, and have a much smaller client-base lol.
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      04-07-2011, 09:42 AM   #9
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Quote:
Originally Posted by ********* View Post
Too much of a chance the wheels will rub and damage the panels....then the auto maker has to cover the damage because of a poor design.

The GT3 is a light car and has a pretty stiff suspension.

You could say that my car is hellaflush and I get zero rubbing and my I didnt had to roll anything.

When you got the exact specs of the wheels you need, this is what you can expect.

So with that in mind, why arent the manufacturer do that kind of homework while designing their wheels?
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      04-07-2011, 09:44 AM   #10
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Quote:
Originally Posted by Leaker View Post
I mean new cars. Look at Ferrari, Porsche, Maseratti....virtually every car maker in the world. I always get aftermarket wheels to fix the problem and can"t understand why most of this gap can't be filled at the factory. Look at Maser coupe. Porsche Boxster.....
im considering Maserati Gran Turismo and i find out the wheels setup on it looks weird....Big gap and the rear wheels go all the way in. Stock setup is always conservative
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      04-07-2011, 09:55 AM   #11
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Quote:
Originally Posted by MaximusJ View Post
You could say that my car is hellaflush and I get zero rubbing and my I didnt had to roll anything.

When you got the exact specs of the wheels you need, this is what you can expect.

So with that in mind, why arent the manufacturer do that kind of homework while designing their wheels?
THATS exactly what I'm getting at.
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Originally Posted by christopherchenm View Post
im considering Maserati Gran Turismo and i find out the wheels setup on it looks weird....Big gap and the rear wheels go all the way in. Stock setup is always conservative
Gran Turismo is a spectacular looking car other than the ENORMOUS gap. I'd love to know their reason. That thing sounds incredible too.
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      04-07-2011, 09:56 AM   #12
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because every does not car about their cars as much as we do
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      04-07-2011, 10:14 AM   #13
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im considering Maserati Gran Turismo
What do you DO for a living?!?!
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      04-07-2011, 11:52 AM   #14
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I think I remember reading something about the wheels/tires needing to have enough clearance for snow chains or something so that the chains don't chew up the fenders.
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      04-07-2011, 11:57 AM   #15
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What do you DO for a living?!?!
just getting a use one , cant afford a new one. Used one is like 50% off of a new one
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      04-07-2011, 11:59 AM   #16
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Well if you actually think about it the fenders are really there to prevent water and road debris from coming up and so the fenders actually NEED to be larger than the wheels for that to happen. It may not look the way you want it to but it is designed that way for a reason. This flush fad will pass too as many others have before it.....
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      04-07-2011, 12:18 PM   #17
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Quote:
Originally Posted by Kevin Harney View Post
Well if you actually think about it the fenders are really there to prevent water and road debris from coming up and so the fenders actually NEED to be larger than the wheels for that to happen. It may not look the way you want it to but it is designed that way for a reason. This flush fad will pass too as many others have before it.....
Fad? Better handling from a wider track is a fad?
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      04-07-2011, 12:18 PM   #18
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Quote:
Originally Posted by Leaker View Post
I mean new cars. Look at Ferrari, Porsche, Maseratti....virtually every car maker in the world. I always get aftermarket wheels to fix the problem and can"t understand why most of this gap can't be filled at the factory. Look at Maser coupe. Porsche Boxster.....
Bigger wheels = harsher ride, more weight.

More rotational mass = slower acceleration/performance.

Also you have to take into consideration that these are street cars. If you lower them, they will bottom out. And I'm not just talking about the bumper, I'm talking about the undercarriage too.

I've cracked my oil pan on my xi.....yea the highest sitting 3 series.

I can't imagine what the damage would have been if I was lowered.....then again I had 5 people in the car.
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      04-07-2011, 12:24 PM   #19
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Bimmer can put 19s on regular e90 but whats the point? just to fill up the gap and flush? also if theres no gap and flush means the car sits very low...
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      04-07-2011, 12:28 PM   #20
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Quote:
Originally Posted by ********* View Post
Bigger wheels = harsher ride, more weight.

More rotational mass = slower acceleration/performance.

Also you have to take into consideration that these are street cars. If you lower them, they will bottom out. And I'm not just talking about the bumper, I'm talking about the undercarriage too.

I've cracked my oil pan on my xi.....yea the highest sitting 3 series.

I can't imagine what the damage would have been if I was lowered.....then again I had 5 people in the car.
Quote:
Originally Posted by christopherchenm View Post
Bimmer can put 19s on regular e90 but whats the point? just to fill up the gap and flush? also if theres no gap and flush means the car sits very low...
You guys have missed the point entirely. I'm talking about offset. That doesnt add any weight at all . Not talking about lowering either. 19" wheels will not change anything with the gap you are talking about either as over all diameter remains the same.
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      04-07-2011, 12:29 PM   #21
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GT3 comes on 18s but the offset makes outer edge of wheel almost flush with outer edge of fender.
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      04-07-2011, 12:45 PM   #22
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We have an agreement with all the manufactures that they can't produce flush fitments so that we can....

I kid I kid...
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