BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      08-31-2018, 07:19 AM   #23
crowtrobot
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Quote:
Originally Posted by durpflip View Post
i don't rub in the rear, no. however it seems strange that you'd have strut clearance issues in the front. well, at least i don't have any strut issues in the front (only huge rubbing issues). are you running an 8" wheel or an 8.5"?

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Originally Posted by John_01 View Post
That's a cool setup. You are rubbing because the RT615K is a sports tire with very square sidewalls. If you get an alignment with a little bit more negative camber on the rear the rubbing is likely to be gone. Otherwise simply remove the 5mm rear spacer and it would be rub free..

For the front you may need some type of front camber plates for those tires with ET40 front offset. Otherwise if you hit the track and drive the car with full opposite lock, I guess the front tire will touch the fender.
Thanks for the input guys.

The wheels are 18x8.5 ET45 APEX EC7s. I have Koni yellows, Dinan camber plates, and M3 control arms (-2.0* of camber overall). The strut clearance in front already seemed marginal, even with the stock 262s (17x7 ET47) - my last track day I saw the inside of my drivers tire chewed up a bit from the strut perch.

Front fender clearance looks good at the top for now, it looks a little tight in the front, but I'll hopefully have some time this weekend to put the car up and check things.
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      08-31-2018, 09:19 PM   #24
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2008 BMW 128i  [10.00]
I run 18x8.5 et 43 AC type 3 wheels on 235/40 tires. Very satisfied, but I am not lowered more than stock sport height.
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"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      09-02-2018, 05:40 PM   #25
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Quote:
Originally Posted by smeard View Post
what size width arc8s? those things are perfectly suited for our cars
They're the 18x 8 1/2 ET45's. Gives me the option of 225 to 245 tires. Perfect fit, no spacers, no issues.
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      10-22-2018, 11:54 AM   #26
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Quote:
Originally Posted by smeard View Post
what size width arc8s? those things are perfectly suited for our cars
We have great ARC-8 fitments for your 1 series We recommend the following:

18" Square:
F&R: 18x8.5" ET45 - 235/40-18

18" Staggered:
F: 18x8.5" ET45 - 235/40-18
R: 18x9.5" ET58 - 265/35-18

We've also created a comprehensive fitment guide specifically for the 1 series that you can check out here. Also, feel free to PM us or give us a call if you'd like to dive into more detail regarding fitment

-Matt
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      10-31-2018, 06:16 AM   #27
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
We have great ARC-8 fitments for your 1 series We recommend the following:

18" Square:
F&R: 18x8.5" ET45 - 235/40-18

18" Staggered:
F: 18x8.5" ET45 - 235/40-18
R: 18x9.5" ET58 - 265/35-18

We've also created a comprehensive fitment guide specifically for the 1 series that you can check out here. Also, feel free to PM us or give us a call if you'd like to dive into more detail regarding fitment

-Matt
This is good to know. I'm more interested in having 4 of the same wheels/tires to cross-rotate them so they all wear evenly.

Thanks!
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      11-10-2018, 02:38 AM   #28
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For me in Germany, only Federal 595RS-RR make the 245/35/18 track day tires.

Those are not street legal, so on certain track days they will not be allowed. Hence why i am focusing on 17x8.5 ET40 wheels instead for my 125i.

Besides, the 125i/128i is the lightest of the E82 series (if i am not mistaken) and you can find Apex 17s as well as OZ alleggerita in 17 x 8,5 ET40 as well. Both wheels weight around 7,6kgs (super light) and both are super strong.

My goal is to run 235/40/17 square on Nangkang AS-1s (they kept getting good reviews, even certain "track junkies" i know locally switch from Cup 2s to them). I aim for the 8.5" wheel since i wanted to be "ready" for a 245 tire when the time comes, last thing i want is to pinch 245s on a 8" wheel (some get away with it, it depends on the wheel and tire).

Now, you then have the other side, where some claim that the E82 is "too heavy", and one should run 18" instead (even for the 125i/128i), i am unsure honestly about this.
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      11-14-2018, 07:31 AM   #29
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I'm looking at a set of wheels 18x8.5 +40 square. Is 225/40/18 a good fit? stock mtech suspension on a 2012 135i.
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      11-14-2018, 01:53 PM   #30
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Quote:
Originally Posted by homewrecker07 View Post
I'm looking at a set of wheels 18x8.5 +40 square. Is 225/40/18 a good fit? stock mtech suspension on a 2012 135i.
This setup can work with stock suspension, but it may need just a touch of negative camber up front for fender clearance. Rear fitment is a bit aggressive as well and may need rolled fenders depending on the tire brand and compound.

We've seen this fitment with 235/40 and even 245/35 tires with negative camber and rolled fenders.
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      11-17-2018, 02:37 AM   #31
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
This setup can work with stock suspension, but it may need just a touch of negative camber up front for fender clearance. Rear fitment is a bit aggressive as well and may need rolled fenders depending on the tire brand and compound.

We've seen this fitment with 235/40 and even 245/40 tires with negative camber and rolled fenders.
If 245/40/18s can fit on your 18x8.5 ET45 wheels....id honestly import them from the UK and leave them to be a dedicated track wheel/tire set (no insurance on tracks anyways).

I can not find any other wheel in this size and offset locally in Germany, most run ET40 and up to ET35 offsets (really aggressive and will definitely require fender mods).
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      12-11-2018, 08:29 PM   #32
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
We have great ARC-8 fitments for your 1 series We recommend the following:

18" Square:
F&R: 18x8.5" ET45 - 235/40-18

18" Staggered:
F: 18x8.5" ET45 - 235/40-18
R: 18x9.5" ET58 - 265/35-18

We've also created a comprehensive fitment guide specifically for the 1 series that you can check out here. Also, feel free to PM us or give us a call if you'd like to dive into more detail regarding fitment

-Matt
Hi. Does your fitment guide include Michelin? I'm a little worried that I keep reading that guys are having some issues with Michelins, which are apparently a little more square than some.
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      12-12-2018, 02:28 PM   #33
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Quote:
Originally Posted by Zombie_Head View Post
If 245/40/18s can fit on your 18x8.5 ET45 wheels....id honestly import them from the UK and leave them to be a dedicated track wheel/tire set (no insurance on tracks anyways).

I can not find any other wheel in this size and offset locally in Germany, most run ET40 and up to ET35 offsets (really aggressive and will definitely require fender mods).
Quick correction, for the 1 series we recommend 245/35-18 tires. Going with a 245/40 is a bit too tall and can result in scrubbing the fender. Many customers have ran 245/35-18 tires square with our 18x8.5" ET45 wheels, but a 5mm spacer and negative camber will be required.

Quote:
Originally Posted by duder13 View Post
Hi. Does your fitment guide include Michelin? I'm a little worried that I keep reading that guys are having some issues with Michelins, which are apparently a little more square than some.
We have many customers running both Super Sports and the new Pilot Sport 4S tires without issue. You should have no issues running our recommended set up with Michelin tires
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      12-12-2018, 08:04 PM   #34
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
Quick correction, for the 1 series we recommend 245/35-18 tires. Going with a 245/40 is a bit too tall and can result in scrubbing the fender. Many customers have ran 245/35-18 tires square with our 18x8.5" ET45 wheels, but a 5mm spacer and negative camber will be required.



We have many customers running both Super Sports and the new Pilot Sport 4S tires without issue. You should have no issues running our recommended set up with Michelin tires
As i said, 245/35 on 18 semi slicks are only available from Federal non track day legal tires, i found some Cup 2 that cost €300 each.

Looking at 245/40/17s semi slicks cost between €150 to €220 (including cup 2s) significantly cheaper and a much wider range of brands to find what i like best. i am aiming for 17s ARC8 track day wheels, i am just not sure if i will go for 8.5" or 9", since i do plan to run camber plates at some point in the future, hate to buy wheels twice.

Due to local TÜV rules and laws, i will be getting used OE 17x8 BMW wheels and going 235/40 all round. Anything else would be for track days (no need for TÜV) since there is no insurance on track anyways.
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