[BulsaraF36]

Hi,

what is the widest tires size I can put on OEM 624M wheels?

Currently I have 225/35/20 ET36 and 255/30/20 ET47 and want to replace it with Continental DWS06 245/35/20 Front and 275/30/20 Rear.

Would this setup work?

Thanks!

[.BMW.]

No, 275 is too wide for the rear 8.5" wheels.

245 front and 255 rear is the widest recommendation, but only works with RWD.

35-profile tires (245/35-20 and 255/35-20) or 30-profile tires (245/30-20 and 255/30-20).

[BulsaraF36]

Thanks, guess I will need to find different all season tires or buy a new set of rims.

Originally Posted by .BMW.

No, 275 is too wide for the rear 8.5" wheels.

245 front and 255 rear is the widest recommendation, but only works with RWD.

35-profile tires (245/35-20 and 255/35-20) or 30-profile tires (245/30-20 and 255/30-20).

[sammoorman]

Originally Posted by .BMW.

No, 275 is too wide for the rear 8.5" wheels.

245 front and 255 rear is the widest recommendation, but only works with RWD.

35-profile tires (245/35-20 and 255/35-20) or 30-profile tires (245/30-20 and 255/30-20).

Good afternoon,
Just to double check, I have 20" rims (8" on front 8.5" on rear). Presently with runflats (which I hate). However I wanted to confirm the options for tyres i can put on without causing problems for my F36. Are they as follows:

Front: 225/40 r20 or 245/35/r20 or 235/35/r20
Rear: 255/35 r20

Presently running:
Front: 225/35/r20
Rear: 255/30/r20

Will a difference in height between the front and rear cause problems for Traction control, ABS etc? What is an acceptable differential in height between front and rear?

225/40 r20 (front) and 255/35 r20 (rear) seem like a similar side wall height but:

1. Will these fit the wheel arches ok?
2. Will they cause any electronic or mechanical problems for my car?

Many thanks
Sam

[J555]

Originally Posted by sammoorman

According to my calculations 225/40 r20 and 255/35 r20 is close but:
1. Will these fit the wheel arches ok?

No, the overall diameter is way too big for your car. The options you have are:
- 225/35/20 + 255/30/20 (obviously)
- 235/35/20 + 265/30/20 (more sidewall, more grip, the rear tires will bulge a bit)

With your current 8-8.5" wheels, you shouldn't go wider.

Originally Posted by sammoorman

2. Will they cause any electronic or mechanical problems for my car?

No, not all.

[sammoorman]

Originally Posted by J555

No, the overall diameter is way too big for your car. The options you have are:
- 225/35/20 + 255/30/20 (obviously)
- 235/35/20 + 265/30/20 (more sidewall, more grip, the rear tires will bulge a bit)

With your current 8-8.5" wheels, you shouldn't go wider.

No, not all.

Thank you, much appreciated.

[5w20]

Originally Posted by BulsaraF36

Hi,

what is the widest tires size I can put on OEM 624M wheels?

Currently I have 225/35/20 ET36 and 255/30/20 ET47 and want to replace it with Continental DWS06 245/35/20 Front and 275/30/20 Rear.

Would this setup work?

Thanks!

I use 225/35/20 (26.2") and 265/30/20 (26.3"). The Michelin Pilot 4s in the 255/30/20 (26") size would stretch on the rear and I didn't like that. The 265 width is more square and better resembles how the 225's look on the front. In my opinion, go with 265 in the rear. Keep in mind different tire models and different brands will fit different.