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





 

Post Reply
 
Thread Tools Search this Thread
      12-06-2018, 06:36 PM   #1
xQx
General
Australia
829
Rep
984
Posts

Drives: 2008 BMW 135i (E88 N54 6AT)
Join Date: Aug 2016
Location: Sunshine Coast QLD Australia

iTrader: (0)

I've run a number of crappy-brand 255/35R18 tires on the back of my E88 without issue; but (thankfully) upgraded to MPS4's recently.

Unfortunately, they seem wider than usual, and are rubbing on the outside whenever I go over a bump.

As a result, the outside shoulders of the tire are being torn to shreds by the body of the car.

I'm interested to know others' experiences; and especially what your recommendations are for a fix.

Should I get the guards rolled (and if I do - should I do the fronts at the same time and does it open up the possibility of even wider tires) - or should I keep a close eye on it and go 245's next time?
Attached Images
 
__________________
2008 BMW 135i Convertible 6AT (E88 N54) M Sport (BMS DCI, VRSF 7" Intercooler, VRSF CP, VRSF v2 DP, Turbosmart BOV, SmartTop Module, xHP Stage 3, BMS Cowl Filters, 2" Inlets
Appreciate 0
      12-06-2018, 06:49 PM   #2
Eyeman
Lieutenant Colonel
Eyeman's Avatar
77
Rep
1,945
Posts

Drives: 2008 135 blk, blk, step
Join Date: Jan 2009
Location: Atlanta, GA

iTrader: (0)

Garage List
That's pretty bad. I'd take it to an alignment shop to have them increase your rear camber.

Rolling and pulling will help somewhat. But I bet you are mainly rubbing where the rear bumper connects to the fender and it's hard to do much with that area.

Michelin's don't so much run big as many cheap tires run small. Many of us have been through this but mainly because we have aftermarket wheels.
__________________
Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr PSS 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, rearseat removal, iCarbon diffuser and front lip, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod.
Appreciate 1
xQx828.50

      12-06-2018, 08:12 PM   #3
dojk
Private First Class
15
Rep
179
Posts

Drives: E82 135i
Join Date: Nov 2010
Location: Malaysia

iTrader: (0)

Are you on stock suspension?

I used to have Hankook S1 Evo2 in 255 for the rear. Couple months back I went for the new Conti Extreme ContactSport also in 255. The Contis were definately wider than the Hankooks but I have yet to experience any rubbing whatsoever.
Appreciate 0
      12-06-2018, 08:19 PM   #4
xQx
General
Australia
829
Rep
984
Posts

Drives: 2008 BMW 135i (E88 N54 6AT)
Join Date: Aug 2016
Location: Sunshine Coast QLD Australia

iTrader: (0)

Quote:
Originally Posted by dojk View Post
Are you on stock suspension?
Yes, stock m-sport suspension. I was a bit surprised, I've been running 255/40's at the back since I got the car.

MPS4's have been the first to cause any issues.
__________________
2008 BMW 135i Convertible 6AT (E88 N54) M Sport (BMS DCI, VRSF 7" Intercooler, VRSF CP, VRSF v2 DP, Turbosmart BOV, SmartTop Module, xHP Stage 3, BMS Cowl Filters, 2" Inlets
Appreciate 1
jalx13.00

      12-16-2018, 03:38 AM   #5
Esteban
Major General
Esteban's Avatar
United_States
4054
Rep
6,324
Posts

Drives: a turbo coupe
Join Date: Jun 2014
Location: The Golden State

iTrader: (0)

You're speaking about the Michelin Pilot Sport 4, and not the Michelin Pilot Sport 4S, is that correct? I ask because I have just purchased Michelin Pilot Sport 4S 225/255 for my car (not installed yet), but I have the the Michelin PSSs in 225/255 that fit with no issues at all and I assume the MPS4Ss will fit the same as the MPSSs.
__________________
2011 135i M Sport with DCT
Appreciate 0
      12-16-2018, 08:27 AM   #6
c1pher
Primo Generalissimo
United_States
1303
Rep
2,156
Posts

Drives: Porsche Macan Turbo
Join Date: Jun 2009
Location: DC area

iTrader: (0)

Quote:
Originally Posted by Esteban View Post
You're speaking about the Michelin Pilot Sport 4, and not the Michelin Pilot Sport 4S, is that correct? I ask because I have just purchased Michelin Pilot Sport 4S 225/255 for my car (not installed yet), but I have the the Michelin PSSs in 225/255 that fit with no issues at all and I assume the MPS4Ss will fit the same as the MPSSs.
I run the same size Michelin AS3+ without any issues either. Maybe the shoulder isn't as rounded to give it more of a contact patch?
Appreciate 0
      12-16-2018, 08:57 AM   #7
MightyMouseTech
Major General
MightyMouseTech's Avatar
3231
Rep
5,207
Posts

Drives: 13 135i 6MT LeMans Blue MSport
Join Date: Feb 2013
Location: Ottawa, Canada

iTrader: (0)

Looks like you just need an alignment and increase rear camber to -2.2 or so.

Was having the same problem with my 265's on one side. Thought I had -2.0 on both sides. Turns out our alignment rack was off, and actually had -1.4 on one side and -2.6 on the other when I redid it on our new alignment rack.
Appreciate 0
      12-16-2018, 07:29 PM   #8
xQx
General
Australia
829
Rep
984
Posts

Drives: 2008 BMW 135i (E88 N54 6AT)
Join Date: Aug 2016
Location: Sunshine Coast QLD Australia

iTrader: (0)

Quote:
Originally Posted by Esteban View Post
You're speaking about the Michelin Pilot Sport 4, and not the Michelin Pilot Sport 4S, is that correct? I ask because I have just purchased Michelin Pilot Sport 4S 225/255 for my car (not installed yet), but I have the the Michelin PSSs in 225/255 that fit with no issues at all and I assume the MPS4Ss will fit the same as the MPSSs.
Yes, Not the 4S.

I've never had MPSS or MPS4S's on the car, so I can't compare. Essentially the only other 255's I've had on were some cheap shitty asian brand tires.

I'm in a convertible with M-Sport suspension, so I might be lower than the average 1er. It's less of a problem with -2.0 camber; but still not completely cured.
__________________
2008 BMW 135i Convertible 6AT (E88 N54) M Sport (BMS DCI, VRSF 7" Intercooler, VRSF CP, VRSF v2 DP, Turbosmart BOV, SmartTop Module, xHP Stage 3, BMS Cowl Filters, 2" Inlets
Appreciate 1
Esteban4053.50

      01-24-2019, 01:45 PM   #9
Jason135i
New Member
12
Rep
10
Posts

Drives: 2013 BMW 135i Convertible
Join Date: Sep 2018
Location: Milwaukee, WI

iTrader: (0)

Why not just buy the right size tire for your car? I don’t get why people always buy oversized tires and wheels that don’t fit.
Appreciate 0
      01-24-2019, 02:02 PM   #10
Matt@EuroJerks
First Lieutenant
338
Rep
367
Posts

Drives: 2013 135i
Join Date: Sep 2016
Location: CT

iTrader: (1)

Quote:
Originally Posted by Jason135i View Post
Why not just buy the right size tire for your car? I donít get why people always buy oversized tires and wheels that donít fit.
Scene "seen" points!!!!
Appreciate 0
      01-24-2019, 03:59 PM   #11
xQx
General
Australia
829
Rep
984
Posts

Drives: 2008 BMW 135i (E88 N54 6AT)
Join Date: Aug 2016
Location: Sunshine Coast QLD Australia

iTrader: (0)

Quote:
Originally Posted by Jason135i View Post
Why not just buy the right size tire for your car? I donít get why people always buy oversized tires and wheels that donít fit.
Well, to be fair, I wasn't trying to buy oversized tires that don't fit, I was trying to buy the widest tires that do fit. You can check if the tire fits on the rim here, and check the specs of your OEM rims here. There's also a helpful thread about what will fit without issues here. Finally, when I bought the car it was running 255/40r18's up the back, so you'd assume changing tire brands but running the same size tires wouldn't cause issues.

So, why do people bother running bigger tires than stock; well, for starters, BMW gave us shitty runflats, so you can't exactly say they chose the best possible tires for performance out of the factory. Now, simple physics tells us that running wider tires does nothing to increase the overall size of the contact patch between the wheel and the road; it just changes it from a long skinny contact patch to a wide and short contact patch - so, the amount of friction between your car and the road doesn't change. BUT, tires rely on adhesion to stick to the road, not just friction; so you're really not going to know if it does anything until someone does some real-world side-by-side testing on a track to see if wider tires mean faster track times or shorter stopping distances.

Oh wait, they have.

Now, I don't know about you; but in my little car, the biggest impediment to me accelerating faster below 100kph is my rear-wheel traction; and my personal preference is to have a car with the shortest possible stopping distances - so it seemed worthwhile to run better and wider tires than BMW shipped the car with from the factory.
__________________
2008 BMW 135i Convertible 6AT (E88 N54) M Sport (BMS DCI, VRSF 7" Intercooler, VRSF CP, VRSF v2 DP, Turbosmart BOV, SmartTop Module, xHP Stage 3, BMS Cowl Filters, 2" Inlets
Appreciate 2
Esteban4053.50

      01-25-2019, 11:57 AM   #12
Matt@EuroJerks
First Lieutenant
338
Rep
367
Posts

Drives: 2013 135i
Join Date: Sep 2016
Location: CT

iTrader: (1)

Quote:
Originally Posted by xQx View Post
Well, to be fair,......
Now, I don't know about you; but in my little car, the biggest impediment to me accelerating faster below 100kph is my rear-wheel traction; and my personal preference is to have a car with the shortest possible stopping distances - so it seemed worthwhile to run better and wider tires than BMW shipped the car with from the factory.
I enjoyed your TED talk. Will come again!!
Appreciate 1
xQx828.50

Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:45 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST