[jdg54]

Originally Posted by wdeerfield

Do the 235/45/18 route. I run that on my stock height xdrive 335 for the winter but im on 18x8.5 wheels. It will fill the wheel well gap, provide a wider contact patch (even if its just 10mm) and look better. It really comes down to compound of the tire for handling as well. Get a good go flat max performance summer tire and you'll improve the handling. With the base suspension (given its a lease) it may be worth it to you to get dinan springs to lower it .75" and stiffen it up some to reduce the body roll.

Sticking with the stock rims, get spacers as well.

I'm a man of many questions, what's a good spacer size/brand recommendation?

[wdeerfield]

Originally Posted by jdg54

I'm a man of many questions, what's a good spacer size/brand recommendation?

H&R, Turner motorsports, macht schnell, future classic. basically just dont cheap out on ebay garbage. I'd recommend one with the notch to remove if you swap to winter wheels or need to do brake work. Makes it much easier.

These are slick but expensive: https://futureclassic.us/collections...eel-spacer-kit

They utilize the rotor retaining bolt to hold down the spacer. Matt Morman of Obsessed garage just did a video on them for his e92 m3

[jdg54]

Absolutely night and day. Original 225 Contis in first pic for reference. I think these look phenomenal. This is my first car ever on non-runflats and WOW. Just everything about it is better.

These Yokohama Advan Sport V105s are super solid so far and I immediately have a much better road feel, as expected coming from the Contiprocontact.

Thanks everyone. alohasurftoad and wdeerfield y'all really helped a ton.

[jdg54]

Oops, Contis uploaded as third pic, not first. First are the new Yokos

[alohasurftoad]

Tires look great. Get a profile and sidewall/fenderwell flushness view when you have a chance.

[jdg54]

Originally Posted by alohasurftoad

Tires look great. Get a profile and sidewall/fenderwell flushness view when you have a chance.

Gotcha tomorrow!

[wdeerfield]

Looks great! amazing what a proper sized tire can do to the 400Ms.

[jdg54]

Please excuse how absolutely filthy it is. Fills in the gap quite nicely. alohasurftoad

[alohasurftoad]

Great pics for peeps future inquiries of this type of setup. Wheel gap reduction is great

[jdg54]

One more since she's shining now. Yokohama Advan Sport V105 235/45/18 on F30 340xi (tags for googling purposes)

[Machinebuilder]

I got a killer deal (under a $100 a tire delivered) on Nokian zLine A/S, a performance all-season tires size 235/45-18. I am mounting them next week and will take photos and report back. When I got them I inspected them and they are made in Russia. Amazing as I can not recall the last thing I bought that was made in Russia. That explains the price but I am not worried. Nokian is a smaller Finnish manufacturer but I have owned a number of their snow and all season tires before and really liked them. They are just under Michelin, Pirelli, Continental and then Nokian for tires geared to Northern cold regions. Nokian Hakkapeliitta's are my favorite snow tires for ski country with Michelin IceX as perfect for around town.

[jdg54]

Originally Posted by Machinebuilder

I got a killer deal (under a $100 a tire delivered) on Nokian zLine A/S, a performance all-season tires size 235/45-18. I am mounting them next week and will take photos and report back. When I got them I inspected them and they are made in Russia. Amazing as I can not recall the last thing I bought that was made in Russia. That explains the price but I am not worried. Nokian is a smaller Finnish manufacturer but I have owned a number of their snow and all season tires before and really liked them. They are just under Michelin, Pirelli, Continental and then Nokian for tires geared to Northern cold regions. Nokian Hakkapeliitta's are my favorite snow tires for ski country with Michelin IceX as perfect for around town.

Vodka? Lol. Nice pick-up. Let me know your thoughts when you mount them up.

[Machinebuilder]

So I mounted the 235/45-18 tires. I think they look good on a stock height Xdrive 440i. It fills the gap and still has plenty of room and no rubbing. Actually the increased size is barely noticeable. The ride is better as these are not run flats. I used the same 32 PSI front and 35 PSI back pressure settings. My E92 coupe had Michelin Pilot Sports (pre 4S) which were wonderful but I went with a high performance all-season instead this time for my new F32. I went with an all season due its increased temperature range and to lesson how long I need to use my winter tire set. Its not a performance tire but will suit my area which can have cold nights in early spring and fall which the Michelin Pilot Sports 4 S or any summer performance tire are not designed for. So time will tell but so far so good. Note first photo was stock 225/45-18 size and others 235/45-18 size

[jdg54]

Originally Posted by Machinebuilder

So I mounted the 235/45-18 tires. I think they look good on a stock height Xdrive 440i. It fills the gap and still has plenty of room and no rubbing. Actually the increased size is barely noticeable. The ride is better as these are not run flats. I used the same 32 PSI front and 35 PSI back pressure settings. My E92 coupe had Michelin Pilot Sports (pre 4S) which were wonderful but I went with a high performance all-season instead this time for my new F32. I went with an all season due its increased temperature range and to lesson how long I need to use my winter tire set. Its not a performance tire but will suit my area which can have cold nights in early spring and fall which the Michelin Pilot Sports 4 S or any summer performance tire are not designed for. So time will tell but so far so good. Note first photo was stock 225/45-18 size and others 235/45-18 size

Love it man! I almost went with an all-season myself but decided that I'd just switch back come October. Car looks great and well filled in. It's almost like these cars should've come with 235/45 stock... hmmm...

[Machinebuilder]

Yes I agree. I think 235/45-18 is ideal for the stock 8" x18" rims and the xdrive stance. For performance its popular to get the 245/40-18 tire size but that is really best with a 8 1/2" rim not the stock 8" wide rim. It also does not decrease the wheel gap distance like the 235/45-18 does. For xdrive you want four square tires so you can't go too wide anyway. I know some people do but the wider the front the more the car wanders and need correction to stay straight.

[jdg54]

Originally Posted by Machinebuilder

Yes I agree. I think 235/45-18 is ideal for the stock 8" x18" rims and the xdrive stance. For performance its popular to get the 245/40-18 tire size but that is really best with a 8 1/2" rim not the stock 8" wide rim. It also does not decrease the wheel gap distance like the 235/45-18 does. For xdrive you want four square tires so you can't go too wide anyway. I know some people do but the wider the front the more the car wanders and need correction to stay straight.

I couldn't agree more. I consider going 245/40 and an eibach drop but realistically, it wasn't worth it for me. The tires have been pretty great for these 250 miles and the ride quality is seriously improved, it feels like I can ease the throttle more on tight curves without getting a little wobbly, and it looks better of course. Experiencing the strangest, slightest shimmy between 74-77 mph which is so incredibly strange as they were all road force mounted/balanced. Regardless, I think you and I both are looking way better on 235/45s! Cheers!

P.S.- I know it's a hike but you should come down to the Poconos for Mpact!

[D’Rock61]

I’m struggling with the same tire issues on my F31 M-Sport, I’m also in the NE, between Philly and NY. I’ve read that a few have gone to the “colonel” alohasurftoad, as I have. The pics and discussion in this thread is great. My question for jdg54 is what’s Mpact? I can only guess, M cars and good times?

[jdg54]

Originally Posted by DÂ’Rock61

I'm struggling with the same tire issues on my F31 M-Sport, I'm also in the NE, between Philly and NY. I've read that a few have gone to the "colonel" alohasurftoad, as I have. The pics and discussion in this thread is great. My question for jdg54 is what's Mpact? I can only guess, M cars and good times?

Originally Posted by DÂ’Rock61

I'm struggling with the same tire issues on my F31 M-Sport, I'm also in the NE, between Philly and NY. I've read that a few have gone to the "colonel" alohasurftoad, as I have. The pics and discussion in this thread is great. My question for jdg54 is what's Mpact? I can only guess, M cars and good times?

It was absolutely awesome! Big BMW show (of course with some others mixed in). There are cars on display, plenty of vendor tents (akrapovic, dinan, bbs, etc) and roll racing! Some people had some insanely fast cars. Check it out on Instagram @ _mpact. You won't want to miss next year.

As for your tires, go 235/45/18. I love them. Lol

[D’Rock61]

Thanks, I’ll check out Mpact on instagram. I wasn’t aware of the event, bummed I missed..,
Your thread and the input from the guys here is very helpful. I was looking at the Yoko’s but wasn’t considering a wider tire 235/45/18 that would also give a slightly higher sidewall. I have Perelli’s 225/45/18, squared now, w the adaptive suspension and they look perfect, side view edge and they fill the wheel well. Makes me think the original owner lower it.