[sspdw]

Originally Posted by bmw noob

What are the recommended psi for 19” 235/40 and 265/35, Michelin ps4s? Shop set them to 41 all around.

I run 45 front 48 rear

[dromo32]

i have 20's....10.5 wide on rear and im running 245/30 front and 295/30 rear and when i put it into traction control, it doesnt accelerate. It was running fine with 235/35 and 275/30 but once i went to 295/30, it started acting funny. Feels like the ABS is off or the sensors arent working and its lagging super bad....know idea what to do other than possibly look into having someone reprogram something so it runs properly b/c the tires arent rubbing and look great!

[bmw noob]

Originally Posted by sspdw

I run 45 front 48 rear

Thanks!

[ixxo]

Originally Posted by dromo32

i have 20's....10.5 wide on rear and im running 245/30 front and 295/30 rear and when i put it into traction control, it doesnt accelerate. It was running fine with 235/35 and 275/30 but once i went to 295/30, it started acting funny. Feels like the ABS is off or the sensors arent working and its lagging super bad....know idea what to do other than possibly look into having someone reprogram something so it runs properly b/c the tires arent rubbing and look great!

If you do run 245/30 front and 295/30 rear then it might be easily the different diameter of wheels on front vs. real axle which confuses x-drive. Web calculator says 4,7 % for your set which is far beyond the allowed 1% or so. Google it But when it comes to the 235/35 and 275/30, the diameter is exactly the same ...

[dromo32]

I dont know about spacers but the offset mm is 25-35

[dromo32]

so, if i got 245/35 in the front, the difference would only be .08 and then my car would drive normal again?

[sspdw]

Originally Posted by dromo32

so, if i got 245/35 in the front, the difference would only be .08 and then my car would drive normal again?

I wouldnt drive it if youre xdrive, you will destroy your distrubution box into pieces in no time with your current setup. If you havent alredy damaged it

[dromo32]

will the distribution box and xdrive be ok if i go 245/35 in the front so the diameter from front to back is only .08% off?

[tnsatbhs]

Originally Posted by dromo32

will the distribution box and xdrive be ok if i go 245/35 in the front so the diameter from front to back is only .08% off?

.08% difference in diameter between front and rear would be fine. No issues with that.

[dromo32]

so then that would most likely fix the issues im having and the drivetrain or distribution box for the xdrive would be ok then?

[tnsatbhs]

Originally Posted by dromo32

so then that would most likely fix the issues im having and the drivetrain or distribution box for the xdrive would be ok then?

Possibly, you may have already done irreparable damage with your current setup. I would get something else on the car ASAP, though. Either a square setup or something like what you mentioned changing to.

[dromo32]

thank you, im going to through back on the 235/35's i have since the diameter will be the same as the back then. Doing this tomorrow, stay tuned.

[bmw noob]

Originally Posted by sspdw

I run 45 front 48 rear

I decided to get in contact with Michelin to be sure. According to them, recommend pressures are 36 front and rear for 235/40/19 and 265/35/19.

Just wanted to let you all know.

[sspdw]

Originally Posted by bmw noob

I decided to get in contact with Michelin to be sure. According to them, recommend pressures are 36 front and rear for 235/40/19 and 265/35/19.

Just wanted to let you all know.

my wheels are 20", but yes they recommend a lower pressure but for me this is what i like best.

[1claire]

Which is better; chrome rims or polished aluminum wheels? I plan on replacing the wheels on my F90 and I can't decide which finish will look good on my car.

[OffK]

Not the best pics, its been too dang hot to get out and get some decent shots.

[Rocket455]

Originally Posted by 1claire

Which is better; chrome rims or polished aluminum wheels? I plan on replacing the wheels on my F90 and I can't decide which finish will look good on my car.

That's really subjective. I've always disliked chrome, but love the polished/brushed look.

[JoCamp]

This was my car back in the day with chrome wheels. Dont let the brake dust bake on them. The chrome will start to chip away and look ugly.
You don't really see chrome these days on a luxury sports car but it's really your preference. A polished aluminum almost looks like chrome.

[onefastdoc]

Originally Posted by 1claire

Which is better; chrome rims or polished aluminum wheels? I plan on replacing the wheels on my F90 and I can't decide which finish will look good on my car.

From a performance standpoint there chrome is worse. In general, chrome rims are the heaviest wheels out there so you’ll never see them on a race car.

[Mr.G20 M340]

19" 305forgedwheels ft115
Fr: 19x8.5 +25 235/40/19
Rr: 19x9.5 +30 255/35/19

[Nickjedi]

Still got a couple things to do but here it is for now! Pretty happy with how it looks... a little different than most g20 wheel setups. Also shoutout to TheDudeMan for finding out about this fitment !

[Gdiddy23]

For anyone running 8.5" + fronts- I was having issues w the PS4 tires throwing debris/gravel and was tearing up my rocker panels. Car was ceramic coated brand new so I'd like to keep it that way if possible.

Bought the front mud flaps and installed tonight from Tommy L garage as he has them for G20 now. I was really hoping to not go this direction, but FWIW, they are low profile enough to blend in w my PB M340. Would recommend to anybody who's OCD like myself about these things.

Will post pics in another thread this week if anyone is interested!