[csh212]

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Can anyone comment on why BMW decided on rear 265's when X3M40 has 275?

[yllwwgn]

Sure. Although doesn’t look as cool, car rotates better around corners when driven above 8/10ths with more similar front/rear tire widths. Personally I prefer wider rears on the back all day long.

[csh212]

Originally Posted by yllwwgn

Sure. Although doesn't look as cool, car rotates better around corners when driven above 8/10ths with more similar front/rear tire widths. Personally I prefer wider rears on the back all day long.

Makes sense. Thanks.
Considering I've yet to break 4k rpms... given 700mi into RIS I prefer curb appeal as well. Although not much wider at all, 275 seem to be a reasonable upsize without looking "riced out".

[SWOT1]

Originally Posted by csh212

Makes sense. Thanks.
Considering I've yet to break 4k rpms... given 700mi into RIS I prefer curb appeal as well. Although not much wider at all, 275 seem to be a reasonable upsize without looking "riced out".

Hey CSH, your concern about the inadequate width of the tires is shared by most of us on this forum... horribly inadequate for an M vehicle! (For reference the X5M has 315r/295f!)
Like several others here, I immediately upgraded to 295r/265f on the stock rims and THIS is how the vehicle should come stock!! (Certainly doesn’t look riced out!) And I’m still planning on 12mm spacers all around to complete the aggressive (though not obnoxious) stance. I believe BMW went with these small rims/wheels (265/255) to save weight and $$$. Not acceptable on an M competition model.

[AlexFL]

Hey guys, do you know if 275's would fit in the front?

[clickclickboom]

Definitely not without spacers

[SWOT1]

Originally Posted by clickclickboom

Definitely not without spacers

Yup, looks like 265's as big as you can go on the front without spacers (without rubbing.)

[AlexFL]

What size spacers should I take?

[csh212]

Originally Posted by SWOT1

Hey CSH, your concern about the inadequate width of the tires is shared by most of us on this forum... horribly inadequate for an M vehicle! (For reference the X5M has 315r/295f!)
Like several others here, I immediately upgraded to 295r/265f on the stock rims and THIS is how the vehicle should come stock!! (Certainly doesn’t look riced out!) And I’m still planning on 12mm spacers all around to complete the aggressive (though not obnoxious) stance. I believe BMW went with these small rims/wheels (265/255) to save weight and $$$. Not acceptable on an M competition model.

Really nice!! Thanks. Anyone know the maximum tire size front and rear without needing spacers?

[hamy]

I"m very happy with the 295's in the rear from a looks perspective. Visually it makes a statement the OE setup just can't do. Performance wise...BMW M rarely gets it wrong. So it's probably faster with the OE sizes.

[AlexFL]

Originally Posted by hamy

I"m very happy with the 295's in the rear from a looks perspective. Visually it makes a statement the OE setup just can't do. Performance wise...BMW M rarely gets it wrong. So it's probably faster with the OE sizes.

I thinks it depends whether you plan any performance upgrades. If yes, wider rear tires will definitely help with the traction. Also consider that manufacturers sometimes opt to put narrower OE tires to improve the fuel economy and handling.

[SWOT1]

Originally Posted by hamy

I"m very happy with the 295's in the rear from a looks perspective. Visually it makes a statement the OE setup just can't do. Performance wise...BMW M rarely gets it wrong. So it's probably faster with the OE sizes.

Looks great! Spacers as well? size?