17" Wheel Fitment Question

SLBimmer · 07-14-2017, 03:51 PM

Costco is running a deal on Velox wheels and I've been trying to downsize from 19s due to more travel on harsher roads (and avoiding expensive tires). I'm pretty dead set on 17s for comfort, price and the meaty look. The 17" Velox Apex is only offered in 17x7.5 et40. Will this fit my 08 e90 335xi? If they do fit, will they look goofy and/or require spacers? Once I get past that decision, I've been leaning towards 245/40/17 tires. Any input on this sizing would be great...

The other option for wheel size is 18x8 et35. I know for sure that these will fit but like I said before, I'm looking for more cushion so I don't have a panic attack every time I hit a pothole.

PS I plan on installing lowering springs and shocks soon.

Thanks!

AoS810 · 07-14-2017, 05:01 PM

17x7.5 et40 is going to look really tucked (and terrible) from the fender edge.. also the tires for 7.5" will be tiny too. For reference my stock 8" wide front wheel takes a 225 tire, rear 8.5" is 255. Maybe you want to consider the 17x9 ET30 Apex Arc-8's with a 255 square setup?

SLBimmer · 07-16-2017, 09:43 PM

Quote:

Originally Posted by AoS810

17x7.5 et40 is going to look really tucked (and terrible) from the fender edge.. also the tires for 7.5" will be tiny too. For reference my stock 8" wide front wheel takes a 225 tire, rear 8.5" is 255. Maybe you want to consider the 17x9 ET30 Apex Arc-8's with a 255 square setup?

The width of the wheel doesn't dictate the width of the tire. So I'd be running tires 1cm or .4" slimmer than the size you suggested.

If the only issue is offset, I could use 10mm spacers, right?

Antetokounmpo · 07-17-2017, 06:45 AM

Quote:

Originally Posted by SLBimmer

The width of the wheel doesn't dictate the width of the tire. So I'd be running tires 1cm or .4" slimmer than the size you suggested.

If the only issue is offset, I could use 10mm spacers, right?

Well of course it does to a certain extent.

You can do a 235/45/17 on the 7.5" but as the guy mentioned you'll need a huge spacer (>25mm) for it to look halfway decent.

SLBimmer · 07-17-2017, 07:58 AM

Quote:

Originally Posted by Antetokounmpo

Well of course it does to a certain extent.

You can do a 235/45/17 on the 7.5" but as the guy mentioned you'll need a huge spacer (>25mm) for it to look halfway decent.

To be clear I'll be running 245/45/17

Antetokounmpo · 07-17-2017, 08:25 AM

Quote:

Originally Posted by SLBimmer

To be clear I'll be running 245/45/17

that's going to look pretty bad on a 7.5", very bulged.. usually the recommended minimum width for a 245 is 8"

SLBimmer · 07-17-2017, 09:07 AM

Quote:

Originally Posted by Antetokounmpo

that's going to look pretty bad on a 7.5", very bulged.. usually the recommended minimum width for a 245 is 8"

Have you ever seen 245/45r17 on a 7.5" wheel?

Antetokounmpo · 07-17-2017, 09:35 AM

Quote:

Originally Posted by SLBimmer

Have you ever seen 245/45r17 on a 7.5" wheel?

I've had 245 on a 8" and it's borderline buldging.

SLBimmer · 07-17-2017, 01:46 PM

Quote:

Originally Posted by Antetokounmpo

I've had 245 on a 8" and it's borderline buldging.

I like bulging

John_01 · 07-19-2017, 06:01 AM

Try to find a 17x8.5 ET40 wheel for those 245/45/17.
Modern tires designed for low rolling resistance generally have soft sidewalls.
The 7.5" wide rim won't support the sidewall at all and the steering response will feel like you are driving a boat.

SLBimmer · 07-19-2017, 07:53 AM

Quote:

Originally Posted by John_01

Try to find a 17x8.5 ET40 wheel for those 245/45/17.
Modern tires designed for low rolling resistance generally have soft sidewalls.
The 7.5" wide rim won't support the sidewall at all and the steering response will feel like you are driving a boat.

This makes sense. Thanks for the explanation.

07-19-2017, 08:53 AM

Quote:

Originally Posted by John_01

Try to find a 17x8.5 ET40 wheel for those 245/45/17.

No.

With that tall of a setup, your tire is likely to hit the bottom spring perch on the strut w/ that ET.

If you stick with 8.5" in width, go at least 30 or 35 on ET BEFORE having to add spacers.

Also OP: how good of a sale are we talkin on those "Velox" wheels? Unless they're almost free, you're likely to find better quality wheels for not a lot more money.

John_01 · 07-20-2017, 12:49 AM

With normal road tires, I'm not convinced there will be a problem with the spring perch, but I admit I have not done it.
Probably around ET37 would be close to the ideal offset, but with stock camber the 245/45 tire will be close the fender and possibly rub at full steering lock.

IMO the most logical solution is OE 17x8.0" ET34 wheels and 235/45/17 tires. That is what I have on my E90, and it is a safe trouble-free fitment.

SLBimmer · 07-20-2017, 09:59 AM

Quote:

Originally Posted by FCobra94

Also OP: how good of a sale are we talkin on those "Velox" wheels? Unless they're almost free, you're likely to find better quality wheels for not a lot more money.

$450 for all 4 but I'm moving away from the idea of buying them. They only come in 7.5". Have seen some stuff on tire rack that I like that are 17x8 and not much more expensive.

Quote:

Originally Posted by John_01

With normal road tires, I'm not convinced there will be a problem with the spring perch, but I admit I have not done it.
Probably around ET37 would be close to the ideal offset, but with stock camber the 245/45 tire will be close the fender and possibly rub at full steering lock.

IMO the most logical solution is OE 17x8.0" ET34 wheels and 235/45/17 tires. That is what I have on my E90, and it is a safe trouble-free fitment.

At one point I was running 275/30r19 tires in the rear w/o problems so I shouldn't have an issue with 245/45r17. With a higher offset, I'd be able to add spacers if necessary right?
PS- logic is not a factor here.

John_01 · 07-21-2017, 07:55 AM

Quote:

Originally Posted by SLBimmer

At one point I was running 275/30r19 tires in the rear w/o problems so I shouldn't have an issue with 245/45r17. With a higher offset, I'd be able to add spacers if necessary right?
PS- logic is not a factor here.

Sure spacers will improve the strut clearance. Eg a 3mm non hub-centric spacer could be a help if there is some rub on the strut during hard cornering.

mweisdorfer · 08-01-2017, 11:19 AM

Make sure you get a 17 x 8.5 or 9.

If you go 7.5" wide, you will really limit your size options big time.

SLBimmer · 08-05-2017, 10:13 AM

Quote:

Originally Posted by mweisdorfer

Make sure you get a 17 x 8.5 or 9.

If you go 7.5" wide, you will really limit your size options big time.

Got lucky and found a set of 17x9 Apex wheels with 245/40r17 tires. When I chnage out the tires I'd like to move to 245/45r17. Would I need a small spacer in the front?

Before and after shot...

mweisdorfer · 08-05-2017, 05:45 PM

Quote:

Originally Posted by SLBimmer

Quote:

Originally Posted by mweisdorfer

Make sure you get a 17 x 8.5 or 9.

If you go 7.5" wide, you will really limit your size options big time.

Got lucky and found a set of 17x9 Apex wheels with 245/40r17 tires. When I chnage out the tires I'd like to move to 245/45r17. Would I need a small spacer in the front?

Before and after shot...

I'd probably go 10-12mm in the front and 15mm in the back.

BMS makes a really great set. VRSF also makes a good set for a little cheaper.

SLBimmer · 08-07-2017, 01:12 PM

Quote:

Originally Posted by mweisdorfer

I'd probably go 10-12mm in the front and 15mm in the back.

BMS makes a really great set. VRSF also makes a good set for a little cheaper.

Will I have clearance issues without them? I think that my fronts are pushed as far out as I would ever want.

mweisdorfer · 08-07-2017, 07:07 PM

Quote:

Originally Posted by SLBimmer

Quote:

Originally Posted by mweisdorfer

I'd probably go 10-12mm in the front and 15mm in the back.

BMS makes a really great set. VRSF also makes a good set for a little cheaper.

Will I have clearance issues without them? I think that my fronts are pushed as far out as I would ever want.

Get the 245/45/17 tires first.

After you get the tires installed then:

Measure the gap. See the DIY below on how to do this and determine which spacers are right for your set up.

https://www.turnermotorsport.com/t-wheel-spacers

I don't think 10mm spacers would be an issue for 245/45/17 tires up front, but I could be wrong.

It's best to measure and know for sure.

07-14-2017, 03:51 PM	#1
SLBimmer Private First Class 9 Rep 129 Posts Drives: 2008 335xi Sedan Join Date: Feb 2013 Location: Connecticut iTrader: (0) Garage List 2008 BMW 335xi [0.00]	17" Wheel Fitment Question Costco is running a deal on Velox wheels and I've been trying to downsize from 19s due to more travel on harsher roads (and avoiding expensive tires). I'm pretty dead set on 17s for comfort, price and the meaty look. The 17" Velox Apex is only offered in 17x7.5 et40. Will this fit my 08 e90 335xi? If they do fit, will they look goofy and/or require spacers? Once I get past that decision, I've been leaning towards 245/40/17 tires. Any input on this sizing would be great... The other option for wheel size is 18x8 et35. I know for sure that these will fit but like I said before, I'm looking for more cushion so I don't have a panic attack every time I hit a pothole. PS I plan on installing lowering springs and shocks soon. Thanks!
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07-14-2017, 05:01 PM	#2
AoS810 Lieutenant 97 Rep 414 Posts Drives: 2008 E90 N51, 2011 E91 N52 Join Date: Oct 2009 Location: Los Angeles, CA iTrader: (6)	17x7.5 et40 is going to look really tucked (and terrible) from the fender edge.. also the tires for 7.5" will be tiny too. For reference my stock 8" wide front wheel takes a 225 tire, rear 8.5" is 255. Maybe you want to consider the 17x9 ET30 Apex Arc-8's with a 255 square setup?
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07-19-2017, 06:01 AM	#10
John_01 Colonel 232 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	Try to find a 17x8.5 ET40 wheel for those 245/45/17. Modern tires designed for low rolling resistance generally have soft sidewalls. The 7.5" wide rim won't support the sidewall at all and the steering response will feel like you are driving a boat.
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07-20-2017, 12:49 AM	#13
John_01 Colonel 232 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	With normal road tires, I'm not convinced there will be a problem with the spring perch, but I admit I have not done it. Probably around ET37 would be close to the ideal offset, but with stock camber the 245/45 tire will be close the fender and possibly rub at full steering lock. IMO the most logical solution is OE 17x8.0" ET34 wheels and 235/45/17 tires. That is what I have on my E90, and it is a safe trouble-free fitment.
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08-01-2017, 11:19 AM	#16
mweisdorfer Major General 1903 Rep 6,968 Posts Drives: 2007 Black/Black 335i e90 Join Date: Apr 2011 Location: Holly, MI iTrader: (0) Garage List 2007 BMW E90 335i [0.00] 2008 bmw x5 [0.00]	Make sure you get a 17 x 8.5 or 9. If you go 7.5" wide, you will really limit your size options big time.
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