[HMDriven.F87]

Being an American living in Germany can be a pain in the ass. Specially when it comes to the rules on the road. While there is no specific time period during which winter tires are required, many German drivers use the rule of thumb "von O bis O" – from O to O – meaning snow tires should be put on in October and remain on until Ostern (Easter). So for the last few months I had to search continuously for a set of wheels that wasn't going to break the bank and would do the job and that became a pain in the ass due to the big brake kit! Finally ended up finding a set of used 641M's off of an M4 for a ridiculously good price. For those of you on the fence about fitment issues I put together a quick video showing the clearance of the wheels since I have found slim to no information on them.

What did you all end up going with for winter wheels?

M2 Competition Winter Wheel Set up | Big Brake Kit

[baege]

same 641m in black on my BSM, 245/35/19 square

i do miss the 437m's already....they look so much more aggressive and concave...amazing how much it affects the look of the car overall, car looks way more tame and boring now

[HMDriven.F87]

Originally Posted by baege

same 641m in black on my BSM, 245/35/19 square

i do miss the 437m's already....they look so much more aggressive and concave...amazing how much it affects the look of the car overall, car looks way more tame and boring now

I will say these are way more aggressive than most of the OEM options out there!

[Pol]

On the CS I have a M437's winter set with Conti's.
So, same problem as with the 641's. There is almost no space between the front calipers and the inside of the rim.
Rim or caliper damage is very real, read probably unavoidable.
Much better would be a second set of M763's ... A very great investment for the winter months.

[HMDriven.F87]

Originally Posted by Pol

On the CS I have a M437's winter set with Conti's.
So, same problem as with the 641's. There is almost no space between the front calipers and the inside of the rim.
Rim or caliper damage is very real, read probably unavoidable.
Much better would be a second set of M763's ... A very great investment for the winter months.

I'm going to be ordering some 763m's for track use and keep the 788m with all seasons in the future. The 788m's have a little bit more clearance but these 641's are definitely close to comfort.

[bri1042]

I ran them for two winters without significant damage inside the rim. It isn't entirely doom and gloom. They worked just fine.

[Bumpinjeep]

That looks way too close for comfort.

[m2compred5]

Originally Posted by HMDriven.F87

Being an American living in Germany can be a pain in the ass. Specially when it comes to the rules on the road. While there is no specific time period during which winter tires are required, many German drivers use the rule of thumb "von O bis O" – from O to O – meaning snow tires should be put on in October and remain on until Ostern (Easter). So for the last few months I had to search continuously for a set of wheels that wasn't going to break the bank and would do the job and that became a pain in the ass due to the big brake kit! Finally ended up finding a set of used 641M's off of an M4 for a ridiculously good price. For those of you on the fence about fitment issues I put together a quick video showing the clearance of the wheels since I have found slim to no information on them.

What did you all end up going with for winter wheels?

M2 Competition Winter Wheel Set up | Big Brake Kit

I just mounted the winter tires on the stock wheels, instead of buying new wheels

[chris719]

Originally Posted by m2compred5

I just mounted the winter tires on the stock wheels, instead of buying new wheels

Yeah, with PA4 now being available in stock sizes, I would most likely just buy a 2nd set of 437M, 788M, or 763M and stay with stock sizing. You could run 4 front 437M wheels and 245 square also to get an exact overall diameter match while going narrower in the rear.

Remounting every season is kind of a pain, but it can be done for sure.

[m2compred5]

It’s a ton cheaper, that was my motivation

[chris719]

Originally Posted by Pol

On the CS I have a M437's winter set with Conti's.
So, same problem as with the 641's. There is almost no space between the front calipers and the inside of the rim.
Rim or caliper damage is very real, read probably unavoidable.
Much better would be a second set of M763's ... A very great investment for the winter months.

I know this is an old thread, but does 763M actually have more clearance?