Is it safe to run 255 fronts?

HyeM340i · 09-21-2022, 11:29 PM

Is 255/35/19x9 +32ET Tires/rims safe to run without rubbing/causing damage? I'm on fully stock suspension, non adaptive, no springs etc. Would love an answer.

G30M · 09-22-2022, 02:29 AM

32 ET no way

Turn Signal · 09-22-2022, 08:09 AM

There are a few examples with that tire and wheel size but you would need spacers. you want to be closer to ET25 if I recall.

bimmerstar · 09-22-2022, 08:21 AM

i dont think there is a definitive offset per wheel width. I plan to explore this weekend with a variety of wheels and set the record straight. I think 32 et is potentially possible on that setup but may need to be pushed out slightly to clear strut. I will update with a new thread by next week.

RigRag93 · 09-22-2022, 10:50 AM

I'm running a 255 front on a 19x9+28 with clearance and no rub on HR springs. I think +25 would be ideal/flush.

G30M · 09-22-2022, 01:38 PM

Quote:

Originally Posted by bimmerstar

i dont think there is a definitive offset per wheel width. I plan to explore this weekend with a variety of wheels and set the record straight. I think 32 et is potentially possible on that setup but may need to be pushed out slightly to clear strut. I will update with a new thread by next week.

please do, i'm planning to go 255 35 19 once i use up these pirellis, i saw a ET 28, 9" rims and it looked to have barely a few mm between the sidewall and the strut

HyeM340i · 09-22-2022, 10:48 PM

Quote:

Originally Posted by G99M5

32 ET no way

I'm actually currently running that set up with no spacers. A90 supra rims. I haven't rubbed, at least I don't think, don't really know how to know besides sound. I just want to avoid using spacers. I've went over bumps and I don't hear anything. I just wanted to know long term because I want to keep running 255 front in the future

G30M · 09-22-2022, 11:12 PM

wow. how many mm gap is there between the tire side and the strut?

i know the top/tread will clear, but the sidewall would be very close? how close?

HyeM340i · 09-24-2022, 01:11 AM

Quote:

Originally Posted by G99M5

wow. how many mm gap is there between the tire side and the strut?

i know the top/tread will clear, but the sidewall would be very close? how close?

Super close. I did get the tires used at 7k miles Michelin PSS's if that matters.

09-21-2022, 11:29 PM	#1
HyeM340i Private 71 Rep 84 Posts Drives: 2020 M340i Join Date: Oct 2019 Location: Glendale,CA iTrader: (0)	Is it safe to run 255 fronts? Is 255/35/19x9 +32ET Tires/rims safe to run without rubbing/causing damage? I'm on fully stock suspension, non adaptive, no springs etc. Would love an answer.
	Appreciate 0 Tweet Quote

09-22-2022, 02:29 AM	#2
G30M Brigadier General 3935 Rep 4,240 Posts Drives: BMW M550i; Kia EV6 GT Join Date: Dec 2021 Location: Australasia iTrader: (0)	32 ET no way
	Appreciate 0 Quote

09-22-2022, 08:09 AM	#3
Turn Signal Private 32 Rep 79 Posts Drives: 2020 M340i xDrive \| 1987 325iS Join Date: Aug 2022 Location: North East iTrader: (0) Garage List 1987 325is [0.00] 2020 M340i xDrive [0.00]	There are a few examples with that tire and wheel size but you would need spacers. you want to be closer to ET25 if I recall.
	Appreciate 0 Quote

09-22-2022, 08:21 AM	#4
bimmerstar Second Lieutenant 149 Rep 237 Posts Drives: 2020 BMW M340xi Join Date: Aug 2022 Location: Michigan iTrader: (2)	i dont think there is a definitive offset per wheel width. I plan to explore this weekend with a variety of wheels and set the record straight. I think 32 et is potentially possible on that setup but may need to be pushed out slightly to clear strut. I will update with a new thread by next week.
	Appreciate 0 Quote

09-22-2022, 10:50 AM	#5
RigRag93 Private 149 Rep 62 Posts Drives: BMW M340i Join Date: Oct 2020 Location: Los Angeles, CA iTrader: (0)	I'm running a 255 front on a 19x9+28 with clearance and no rub on HR springs. I think +25 would be ideal/flush.
	Appreciate 0 Quote

09-22-2022, 11:12 PM	#8
G30M Brigadier General 3935 Rep 4,240 Posts Drives: BMW M550i; Kia EV6 GT Join Date: Dec 2021 Location: Australasia iTrader: (0)	wow. how many mm gap is there between the tire side and the strut? i know the top/tread will clear, but the sidewall would be very close? how close?
	Appreciate 0 Quote