[f80phan]

Currently running a square set up 255/30/19 mps4s on apex sm10's 19x9 et 30.

[DJSF3014]

Originally Posted by kp4hunnid

Currently running a square set up 255/30/19 mps4s on apex sm10's 19x9 et 30.

Are you spinning?

[cfm56d7b]

Is your car RWD or AWD (xDrive)?

[f80phan]

Originally Posted by DJSF3014

Are you spinning?

Yes

[f80phan]

Originally Posted by cfm56d7b

Is your car RWD or AWD (xDrive)?

RWD

[alohasurftoad]

for more traction you can do wider, taller(gearing), stickier compound or combination thereof. tire compound will have the most impact on traction however it may compromise noise and comfort, or be more expensive.

the widest i've seen on the rear is 295/30/19 @ ET45 on rays340i

255/35/19 @ ET30-35 front, 295/30/19 @ ET45 rear
245/40/19 @ ET30-35 front, 275/35/19 @ ET40-45 rear
245/35/19 @ ET30-35 front, 285/30/19 @ ET40-45 rear

personally, i'd get 18's
255/40/18 ET30-35 front, 285/35/18 ET40-45 rear

[DJSF3014]

Originally Posted by alohasurftoad

for more traction you can do wider, taller(gearing), stickier compound or combination thereof. tire compound will have the most impact on traction however it may compromise noise and comfort, or be more expensive.

the widest i've seen on the rear is 295/30/19 @ ET45 on rays340i

255/35/19 @ ET30-35 front, 295/30/19 @ ET45 rear
245/40/19 @ ET30-35 front, 275/35/19 @ ET40-45 rear
245/35/19 @ ET30-35 front, 285/30/19 @ ET40-45 rear

personally, i'd get 18's
255/40/18 ET30-35 front, 285/35/18 ET40-45 rear

Great info thank you got any suggestions for awd? I have a bms kit straight 93 no pi will be pushing right around 550 whp once tuning done and I'm looking for a new wheel set up.

[alohasurftoad]

Originally Posted by DJSF3014

Great info thank you got any suggestions for awd? I have a bms kit straight 93 no pi will be pushing right around 550 whp once tuning done and I'm looking for a new wheel set up.

all those tire setups i listed meet diameter criteria for x-drive.

what is your total wheel/tire/tpms budget?

[alohasurftoad]

Originally Posted by kp4hunnid

Currently running a square set up 255/30/19 mps4s on apex sm10's 19x9 et 30.

imo you should be running 255/35/19(26") and not 255/30/19 which is 25"

you could buy just rear APEX 19x11 ET44 SM-10 with 295/30/19(26"). it should fit but i'm not 100% certain. you should still change your front size to 255/35/19, though.

[DJSF3014]

Originally Posted by alohasurftoad

all those tire setups i listed meet diameter criteria for x-drive.

what is your total wheel/tire/tpms budget?

No idea just kinda looking would those sizes with mps4s be good? Also looking for 18's

[alohasurftoad]

Originally Posted by DJSF3014

No idea just kinda looking would those sizes with mps4s be good? Also looking for 18's

MPS4S comes in 255/40 & 285/35. Apex has FL-5 in 18x9 ET30, 18x10.5 ET40 or if you can find a mint used set of 513M, that'd be perfect.

[f80phan]

Originally Posted by alohasurftoad

imo you should be running 255/35/19(26") and not 255/30/19 which is 25"

you could buy just rear APEX 19x11 ET44 SM-10 with 295/30/19(26"). it should fit but i'm not 100% certain. you should still change your front size to 255/35/19, though.

[QUOTE=alohasurftoad;27057425]

I know I should've done a different size, I was just following their fitment guide and had also asked them but I regret it lol. For sure I'll change the rears first to 18's, thank you!

[f80phan]

Originally Posted by alohasurftoad

imo you should be running 255/35/19(26") and not 255/30/19 which is 25"

you could buy just rear APEX 19x11 ET44 SM-10 with 295/30/19(26"). it should fit but i'm not 100% certain. you should still change your front size to 255/35/19, though.

I just checked and they actually are 255/35, idk why I kept remembering 30.

[alohasurftoad]

Originally Posted by kp4hunnid

I just checked and they actually are 255/35, idk why I kept remembering 30.

that's good.

as i stated in a previous post, 295/30/19 ET45 @ -1.9 camber is the widest i've seen on rays340i, here...https://f30.bimmerpost.com/forums/sh...+295%2F30%2F19

the section width (widest point on the tire) on that Hankook is 11.8". IF the outer width on the 19x11 ET44 SM-10 is less than 11.8", you should be able to run those wheels with 295/30/19 in the rear. wheel width is measured between the bead seats,(not from lip to lip). if you can query APEX to give you the absolute width of the 19x11.

If you don't want to risk that, the max width on 19x9 is 275/35/19 however it will be poking at ET30 and may contact the fenderwell lip under compression.

[5w20]

Originally Posted by kp4hunnid

Currently running a square set up 255/30/19 mps4s on apex sm10's 19x9 et 30.

Michelin ps4’s are good to about 450 depending on street composition. Asphalt generally is more traction limited than concrete. Since you’re higher than that I highly recommend getting into the R compound tires.