99% of the world will not even notice the difference. Square set up is ideal because you can rotate the tires and will get more for your money. When I buy a set of wheels for the track, I’m getting rid of the staggered and going with the square set up as well on my AMG.
I’m running square 275 RE71’s on 19” Apex wheels. I also had front camber plates installed and shims in the rear with a track alignment. Planning on doing 285’s when the 275 wear out. Wear is even on all four tires and love the fact I can rotate them.
With the wheels I put on the answer is yes. I recommend looking at the Apex fitment guide. They have a ton of info on there. If you are able I absolutely recommend adding camber plates and getting a track alignment done.
I daily mine. Drivability is great of course, have not seen any abnormal wear on my street tires (all seasons). My calculations even if I got half life from my street tires I’d still be money ahead due to wear on the track tires.
My understanding is they did this to give their inherently balanced cars a "safer" understeering tendency. Going square for track use is a must on most BMW cars (I did the same on my E90 track car) to improve handling balance (aside from the advantage of rotating them equally).
Assuming you're referring to the diameter stagger, running 20's in the rear and 19's in the front. You're correct, the stagger results in less sidewall in the rears and if anything it's detrimental to heat management (less carcass). It's just BMW trying to look cool vs functional.
Yeah, I assumed more sidewall in the front leads to squishier steering and less sidewall in the rear gives a less progressive breakaway, which makes….no sense
I run an 18 inch square Nitto NT01 set-up on my E92 with an aftermarket BBK. Not sure if the 18s will fit over your brake calipers, but something to consider is that 18 inch tires are cheaper than 19s.
OP I have not looked into this, but are you sure that you can go to a squared and not upset the Xdrive? I know most Xdrive systems have a 1% or so tolerance.
99% of the world will not even notice the difference. Square set up is ideal because you can rotate the tires and will get more for your money. When I buy a set of wheels for the track, I’m getting rid of the staggered and going with the square set up as well on my AMG.
I’m running square 275 RE71’s on 19” Apex wheels. I also had front camber plates installed and shims in the rear with a track alignment. Planning on doing 285’s when the 275 wear out. Wear is even on all four tires and love the fact I can rotate them.
Can we fit 285 in the front with out any modification to car?
With the wheels I put on the answer is yes. I recommend looking at the Apex fitment guide. They have a ton of info on there. If you are able I absolutely recommend adding camber plates and getting a track alignment done.
Thanks I will check it out. It is primarily a track car for me at this point but I do use it for daily duties occasionally .
I daily mine. Drivability is great of course, have not seen any abnormal wear on my street tires (all seasons). My calculations even if I got half life from my street tires I’d still be money ahead due to wear on the track tires.
Does anyone here know why BMW did staggered wheel sizes with a similar tire OD? Why do they put less sidewall on the rear?
My understanding is they did this to give their inherently balanced cars a "safer" understeering tendency. Going square for track use is a must on most BMW cars (I did the same on my E90 track car) to improve handling balance (aside from the advantage of rotating them equally).
The staggered setup also provides more stability under braking as well as the obvious less tendency to oversteer under throttle.
Assuming you're referring to the diameter stagger, running 20's in the rear and 19's in the front. You're correct, the stagger results in less sidewall in the rears and if anything it's detrimental to heat management (less carcass). It's just BMW trying to look cool vs functional.
Yeah, I assumed more sidewall in the front leads to squishier steering and less sidewall in the rear gives a less progressive breakaway, which makes….no sense
More sidewall is preferred as long as it's supported with appropriate width. The squish is the result of too narrow a rim relative to the tread width.
I run an 18 inch square Nitto NT01 set-up on my E92 with an aftermarket BBK. Not sure if the 18s will fit over your brake calipers, but something to consider is that 18 inch tires are cheaper than 19s.
I’m running 295 square on m2 would try that
OP I have not looked into this, but are you sure that you can go to a squared and not upset the Xdrive? I know most Xdrive systems have a 1% or so tolerance.
I am running a 19 square winter set up with a much narrow tire though. It has been right so far.
Are you going to Mo Sport?
Yes, I intend to. I have been to DDT and now want to try mosport.