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[rimlaban7]

I have a 2011 335d with stock (non-sport) suspension.

I am trying to decide what size summer tires to purchase for 193m wheels. I have decided the tires will be Continental ExtremeContact DW. I believe these tires tend to run a little wider than the competition.

Here are the wheel specs, along with OEM tire size and two alternatives I am considering:

Front Wheel:
18 x 8 ET 34

Rear Wheel:
18 x 8.5 ET 37

OEM Tires:
Front: 225 x 40 R18
Rear: 255 x 35 R18

Alternative 1:
Front: 225 x 45 R18
Rear: 255 x 40 R18

Alternative 2:
Front: 235 x 40 R18
Rear: 265 x 35 R18

I am thinking of putting either of the above alternatives on the 193m wheels. Will I have problems with either? What are the pros and cons? Finally, should I just forget about changing the size and stick with OEM size since the Continental tires are a little wider anyways?

Any help is appreciated! Thanks!

[bvanlieu]

What is wrong with the OEM setup? You are only going to be increasing rolling resistance going larger, and likely overall weight at the corners. Just because we D owners enjoy decent MPG doesn't mean we should cause it to go down further

I can understand perhaps wanting a bit more grip in the rear due to the torque monster but unless you went aftermarket we have an open diff...you are going to spin them once in a while without a light foot. Compound will help more then size there.

JMHO,

- b

[Nitrous Garage]

I agree with bvanlieu. Stick to the OEM size unless you want to step up the wheel size. If you want more traction you can always go with a Michelin PSS tire

[rimlaban7]

Thanks for the responses! I guess to clarify, part of the reason I am considering Alternative 2 is for a wider tire look, while Alternative 1 may also add some comfort. Just not sure what these alternative sizes would look like on the 193m wheel or if I would have any clearance problems with the stock suspension.

[Nitrous Garage]

If you want a meatier look go with alternative 2

[William E93]

I have just changed my RFT to PSS and I have also upgraded one size as your option 2...Front 235/35/19 and rear 265/30/19.. can't wait for spring to come.

[VMRWheels]

Originally Posted by Nitrous Garage

I agree with bvanlieu. Stick to the OEM size unless you want to step up the wheel size. If you want more traction you can always go with a Michelin PSS tire

[rimlaban7]

Still not decided, been doing research. It seems this thread actually recommends going up in profile, instead of wider, for better ride quality - that's my Alternative 1 above. I think I am actually leaning toward this too now ...

[coupegt]

Hi rimlaban,

I have similar situation on my hand I have a 2008 328xi sedan. Looking at the same setup, 193m style 18" 8.0 front and 8.5 rear. Did you you ever decide on your setup ? Did you have to use any spacers ? thanks

[rimlaban7]

Originally Posted by coupegt

Hi rimlaban,

I have similar situation on my hand I have a 2008 328xi sedan. Looking at the same setup, 193m style 18" 8.0 front and 8.5 rear. Did you you ever decide on your setup ? Did you have to use any spacers ? thanks

Ah, this was actually a while ago, while I still had my 335d. I chose Alternative 2 and didn't have any issues ... hope this helps.

Alternative 2:
Front: 235 x 40 R18
Rear: 265 x 35 R18

[redline2001]

Stick with oem sizes and get some PSS . Michelins are fatter than a lot of other brands and will give you the wider look your looking for.