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[BMW Fanatic]

...Black Sport Edition A7 rims 8inch on all 4 corners with 235/40/18 tires. Prefer E92 M3 but any E9X is fine.

Ordered them a few days ago, waiting on arrival. I'm thinking if I should have gone with 245's all around. Hopefully they don't look TOO bad

Thanks guys

[M3SQRD]

Based on the tire size and wheel width I'm guessing these are winter wheels - a narrower wheel is better than a wider wheel in the snow because it will tend to plow less thru the snow. Now, the car certainly won't be great to drive in the dry with a narrow tire with soft tread blocks and side walls - be careful!

Not sure if you'll find someone with pictures because I think the black A7 was just released this year. Time to photoshop...

[BMW Fanatic]

Originally Posted by dbarnes

Based on the tire size and wheel width I'm guessing these are winter wheels - a narrower wheel is better than a wider wheel in the snow because it will tend to plow less thru the snow. Now, the car certainly won't be great to drive in the dry with a narrow tire with soft tread blocks and side walls - be careful!

Not sure if you'll find someone with pictures because I think the black A7 was just released this year. Time to photoshop...

The temperature here in Calgary is most likely not to go above 1/2 degree Celsius until March, and will constantly be anywhere from -40 to 0. So I should be okay don't you think?

Do you think I should have gone with 245 all around instead of 235?


BUMP for pics, Ben@Tirerack said people have brought this set-up so please post

[M3SQRD]

Originally Posted by BMW Fanatic

The temperature here in Calgary is most likely not to go above 1/2 degree Celsius until March, and will constantly be anywhere from -40 to 0. So I should be okay don't you think?

Do you think I should have gone with 245 all around instead of 235?


BUMP for pics, Ben@Tirerack said people have brought this set-up so please post

235 should be fine. However, even at 0C or colder, snow tire tread blocks are tall, soft and contain many sipes (break tread block into smaller sections to increase bite on snow and ice) so in the dry there will be a lot of lateral tire deformation. You'll get used to it with time but I'd strongly recommend you take it easy in the dry at first until you understand how the handling characteristics have changed. Did you buy snow/ice or winter performance tires? Winter performance are much better in the dry but give up ice and deep snow traction.

What are the offsets on the wheels? Did TireRack recommend running spacers or are the offsets correct?

[kmarei]

235 is the factory spec winter tire
so if you trust the M engineers, you should be ok with what they tested, and preferred

[BMW Fanatic]

Originally Posted by dbarnes

235 should be fine. However, even at 0C or colder, snow tire tread blocks are tall, soft and contain many sipes (break tread block into smaller sections to increase bite on snow and ice) so in the dry there will be a lot of lateral tire deformation. You'll get used to it with time but I'd strongly recommend you take it easy in the dry at first until you understand how the handling characteristics have changed. Did you buy snow/ice or winter performance tires? Winter performance are much better in the dry but give up ice and deep snow traction.

What are the offsets on the wheels? Did TireRack recommend running spacers or are the offsets correct?

dbarnes I'm the same guy that made this thread to which you replied - http://www.m3post.com/forums/showthread.php?t=605748 -

I'm use to driving with dedicated winter tires (PA3) on my previous E90 non-M so I guess it should be the same principle.

I purchased 18x8 et20, with Bridgestone WS60 235/40/18, all around. These offsets are good for the ///M, I was thinking about spacers to make them sit a bit more flush, do you think that would be a good or bad idea or no difference. Perhaps 10mm all around..

Originally Posted by kmarei

235 is the factory spec winter tire
so if you trust the M engineers, you should be ok with what they tested, and preferred

Good to know, thanks

[M3SQRD]

Originally Posted by BMW Fanatic

I'm use to driving with dedicated winter tires (PA3) on my previous E90 non-M so I guess it should be the same principle.

I purchased 18x8 et20, with Bridgestone WS60 235/40/18, all around. These offsets are good for the ///M, I was thinking about spacers to make them sit a bit more flush, do you think that would be a good or bad idea or no difference. Perhaps 10mm all around..

OK - glad to know you have experience with snow tires! That is the correct offset (matches the OEM winter wheel offset) so I'm not sure I'd add a spacer. Winter wheels are all about function so I'd try them without spacers first. If performance is great then stay away from spacers. If you don't like the snow/winter handling then you could always play around with spacers at that point. Be safe...

[MisterM3]

here you go...

http://www.m3post.com/forums/showthread.php?t=599417

btw, i have the same setup. putting them on soon

[BMW Fanatic]

Originally Posted by dbarnes

OK - glad to know you have experience with snow tires! That is the correct offset (matches the OEM winter wheel offset) so I'm not sure I'd add a spacer. Winter wheels are all about function so I'd try them without spacers first. If performance is great then stay away from spacers. If you don't like the snow/winter handling then you could always play around with spacers at that point. Be safe...

Thank you for all the information in this thread and the last.

[BMW Fanatic]

Originally Posted by MisterM3

here you go...

http://www.m3post.com/forums/showthread.php?t=599417

btw, i have the same setup. putting them on soon

THANK YOU! Finally get to see what they look like, can't wait to mount em when they get here. Hopefully it gets us through winter safe and sound.