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2Addicts | BMW 2-Series forum Technical Topics Wheels and Tires -- Sponsored by The Tire Rack TR Motorsport C4 with 245/40/17 square setup

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      05-16-2018, 11:19 PM   #23
ChrisFulton
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Originally Posted by jmwilson125 View Post
What is your offset?
Et40
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      05-18-2018, 11:01 AM   #24
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Originally Posted by ChrisFulton View Post
Et40
Just put mine on they seem not to be rubbing.

Et46 (measured by me roughly) 8" rim
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      05-30-2018, 12:05 PM   #25
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Love the look ! The steering and grip feels much better than my oem 19 inch staggered setup.
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      06-04-2018, 02:02 PM   #26
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Originally Posted by PLF69 View Post
Love the look ! The steering and grip feels much better than my oem 19 inch staggered setup.
Looks good!
I'm very happy with mine too.
If you track it, remove the center caps. I forgot and lost 3.
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      06-04-2018, 06:19 PM   #27
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Quote:
Originally Posted by jmwilson125 View Post
Just put mine on they seem not to be rubbing.

Et46 (measured by me roughly) 8" rim
Update, this setup does RB on the outside front, or I should say did. Seems ok now
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      06-04-2018, 06:45 PM   #28
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Those look so good. May break down and get a set for the next track day, to save my dailies.
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      06-12-2018, 08:43 AM   #29
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Anyone knows where to buy replacement center caps ?
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      06-12-2018, 09:21 PM   #30
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Originally Posted by PLF69 View Post
Anyone knows where to buy replacement center caps ?
Probably Tire Rack. Otherwise, PM me.
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      06-12-2018, 09:26 PM   #31
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Originally Posted by PLF69 View Post
Anyone knows where to buy replacement center caps ?
Tire Rack has them.
$4
I lost 3 first track day & threw the 4th in the trash.
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      06-13-2018, 08:45 AM   #32
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Thanks ordered 4 but since I'm in Canada with shipping and fees ads up to $46 USD
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      06-13-2018, 11:49 AM   #33
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Quote:
Originally Posted by ChrisFulton View Post
Tire Rack has them.
$4
I lost 3 first track day & threw the 4th in the trash.
I've found that plastic centre caps melt from brake heat migrating through the hub into the wheel centres during track days, one additional check before taking the car out is to remove them. On my Caterham the rear wheel hubs are particularly prone to melting the centre cap tangs before they fly off, causing them to become track debris and potentially being given a black flag.
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      06-13-2018, 01:19 PM   #34
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Quote:
Originally Posted by aerobod View Post
I've found that plastic centre caps melt from brake heat migrating through the hub into the wheel centres during track days, one additional check before taking the car out is to remove them.
The first time one came off a car of mine, a track worker saw it, retrieved it, and brought it over to me saying "We just assume all you guys know to take them off for the track." Of course, he was thinking in terms of their having to clean junk off of the track.
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      09-05-2018, 11:37 AM   #35
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Hey, I was researching a 245 square setup and came across this thread. Happy it works out! Do/can you use any spacers in the rear to make the tires flush with the fender? I think people use 10-20mm on stock rear wheels, but I've never messed with it.
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      09-06-2018, 04:24 PM   #36
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Quote:
Originally Posted by nubbster927 View Post
I remember when checking my speedo against GPS, the speedo read ~4-5 mph higher than the GPS at about 80 mph, whereas the stock tires read within 1-2 mph or so.

As far as ABS, I didn't notice a difference. Brakes still chattered like normal, I just stopped much quicker than before with all that new grip.
I would think you should be able to re-program your wheel diameter via Bimmercode? Am I wrong?
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      09-07-2018, 10:41 PM   #37
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Quote:
Originally Posted by Razzback View Post
Hey, I was researching a 245 square setup and came across this thread. Happy it works out! Do/can you use any spacers in the rear to make the tires flush with the fender? I think people use 10-20mm on stock rear wheels, but I've never messed with it.
I've never messed with spacers either. It looks pretty flush to me just right out of the box. But the setup works great!
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      05-17-2020, 05:28 PM   #38
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Sold! Amazing value on these wheels and you can get 245/40 RS4s for $140 each on TR right now.

Going w/ black on my estoril m240.
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      05-17-2020, 11:00 PM   #39
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Would a 255 square setup be possible?
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      06-26-2020, 09:43 AM   #40
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Would a 255 square setup be possible?
Definitely possible, I've seen it in person and seems like other guys on the forum run it without a problem. But I think you need some additional camber, and probably a wider wheel than 8 inches to pull it off and get the clearance you need.
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      07-10-2020, 08:47 AM   #41
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Considering this setup: 245/40 r18 ET40 With the C4 TRMotorsports. Mostly because I track so infrequently and want them as full summer setup and the wheel gap with 17” looks a little too large for my preference. Does anyone know if the 18” vs 17” present fitment issues? Edit: on stock suspension *

Last edited by PeanuKeeyes; 07-10-2020 at 01:22 PM..
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      07-10-2020, 11:57 AM   #42
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255 is definitely doable. You just need at least 2.3* of negative camber. Yes, I stuffed a 255/40R17 RE71R on it.

The car is now on KW clubsport, and has 3.3* of camber, and I have a set of NT03RR 18x9 ET45 with 17.5mm spacer with Hankook RS4 in 255/35R18 on it. It fits.
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      07-25-2020, 02:34 PM   #43
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Quote:
Originally Posted by robprice View Post
Quote:
Originally Posted by PLF69 View Post
Love the look ! The steering and grip feels much better than my oem 19 inch staggered setup.
Looks absolutely amazing. I don't know how I've missed this thread.
I now have an M2 since 2018, things are a bit more expensive but we can run up to 265F and 295-305 rear, grip is insane..
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      07-25-2020, 04:44 PM   #44
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Quote:
Originally Posted by PLF69 View Post
Quote:
Originally Posted by robprice View Post
Quote:
Originally Posted by PLF69 View Post
Love the look ! The steering and grip feels much better than my oem 19 inch staggered setup.
Looks absolutely amazing. I don't know how I've missed this thread.
I now have an M2 since 2018, things are a bit more expensive but we can run up to 265F and 295-305 rear, grip is insane..
I have seen 285 square on a M2 during autocross.
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