[mikerx5]

Any pics you can share? About to buy spacers and was debating 20mm or 18mm in the rear? I am between the 2.

[Justao]

Originally Posted by mikerx5

Any pics you can share? About to buy spacers and was debating 20mm or 18mm in the rear? I am between the 2.

I’m running 12mm rear and 18mm front… that’s a standard setup for m8 and most of use the same… I really wanna go with wider tyres just worried a little if it’s gonna rub with 285/295 tyres

[Wayne6071]

did you try this ...i may do the same

[xmanpro]

I initially had 18mm front and 12mm rear on stock tires.

Then I went with 285f and 295r PS4S on a 12mm square setup.

Had to run a square since the fronts would rub on the 18mm.

The pic with pirrellis was 18/12 setup.

[Moopai]

Personally I wouldn't go with 40s/35s I feel the car loses it's sporty look and you will not get the flush look you're interested in...

There is a member on this forum that's running 255/35 front 285/30 rear with 15mm spacers all around on the M728s.

I'm changing my tires this summer as well and I'm in the same boat as you, I want to get a little wider tires. Currently I have almost a flush look but I would like to get little closer to the edge of the vendors but NOT to extend outside the vendors. Here's the current look with the 245/275.

Let us know what you decide! By-the-way, where are you planning to purchase your tires from? I haven't found a reasonable price for Michelin's S4S yet!

Originally Posted by njfoses

If your main objective is to fill the wheel well a bit, I would go with 245/40 and 275/35.

[fettekatze]

Originally Posted by Moopai

There is a member on this forum that's running 255/35 front 285/30 rear with 15mm spacers all around on the M728s.

Any idea what thread it was? I can't seem to find it. It does seem the 245 and 275's are a bit stretched on the stock 8" and 9" wheels and they could go a bit wider. I also agree that 40/35 have too much sidewall and don't look as sporty.

[baf3472]

I am running 245/40 and 275/35 non-runflats on my oem m850 wheels. I had them on both my old Gran Coupe and my current Coupe. I have spacers for the coupe, but havent gotten around to installing them yet. I do like that the tires fill out the wheel well a bit more and the ride is a little more plush but still plenty sporty.
Heres some pics of my old GC, kinda hard to see but its all I have.

[f8ighym3]

Originally Posted by LoveMyM8

They fit perfect and look great. Also the wheel diameter is closer than the stock 285/275 setup so no issues with the XDrive. The tires stay inside the top wheel well so no issues with rubbing on suspension compression

Great, this's exactly what I'm looking to do also. Thank you for posting this here!....Can you post some pics. of the side of the car? I like to see how the sidewall profiles compare.

[Moopai]

I began shopping around for new tires, interesting enough on tiredirect.ca they state if you want to go with 285/30R20 rear, the Approve Rim Width is 9.5" - 10.5". So how is it some members here managed to put the 285/30R20 on M728s with no issues being a 9"wheel?

I'm confused now and starting to wonder if I should keep the factory sizes for both front and rear!

Originally Posted by Moopai

Personally I wouldn't go with 40s/35s I feel the car loses it's sporty look and you will not get the flush look you're interested in...

There is a member on this forum that's running 255/35 front 285/30 rear with 15mm spacers all around on the M728s.

I'm changing my tires this summer as well and I'm in the same boat as you, I want to get a little wider tires. Currently I have almost a flush look but I would like to get little closer to the edge of the vendors but NOT to extend outside the vendors. Here's the current look with the 245/275.

Let us know what you decide! By-the-way, where are you planning to purchase your tires from? I haven't found a reasonable price for Michelin's S4S yet!