245/40/18 and 275/35/18 on ARC-8 rub?

SepangZ4MC · 02-07-2024, 01:29 AM

I have a Z4MC on stock suspension. I am looking at ARC-8 wheels in
front: 18x8.5 et38 with 245/40/18 tires
rear: 18x9.5 et22 with 275/35/18 tires

I searched this forum looking for answers and it seems there are users here with that spec in the Definitive Wheel Spec thread but conflicting information as to whether this will rub especially up front.

Does anyone have a more definitive answer as to how well this will fit?

onebluemcm · 02-12-2024, 09:09 PM

I have 18 x 9 Front , offset +38, 18 x10 Rear , offset +27 with 245/40 front and 285/35 rear. This on suspension with a slight drop, figure 3/8". No rub up front. Slight rub with the rears on heavy g-outs/big abrupt road dips. In the rear the rub is occurring at the inside top of the wheel, not at the fender opening.

I think you'll be ok. Hope that helps.

86Zed · 02-20-2024, 01:22 PM

I run the following setup lowered 1-1.5" on coilovers and ~2.5 deg of front camber. It rubs up front on full compression aggressive driving (track).

Front: APEX FL-5 18×9" ET30 245/35/18
Rear: APEX FL-5 18x10" ET25 275/35/18

Your proposed setup has a lot more tire height up front but the rear should be just fine.

Apex's own fitment guide is a solid resource to use here https://apexwheels.com/fitment-guide...-fitment-guide
Can compare your own setup using a tool similar to this https://www.willtheyfit.com/index.ph...9.5&offset2=22

02-07-2024, 01:29 AM	#1
SepangZ4MC New Member 0 Rep 20 Posts Drives: Z4M Coupe Join Date: Feb 2024 Location: US iTrader: (0)	245/40/18 and 275/35/18 on ARC-8 rub? I have a Z4MC on stock suspension. I am looking at ARC-8 wheels in front: 18x8.5 et38 with 245/40/18 tires rear: 18x9.5 et22 with 275/35/18 tires I searched this forum looking for answers and it seems there are users here with that spec in the Definitive Wheel Spec thread but conflicting information as to whether this will rub especially up front. Does anyone have a more definitive answer as to how well this will fit?
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02-12-2024, 09:09 PM	#2
onebluemcm Captain 42 Rep 632 Posts Drives: '07 Z4MC Join Date: Apr 2010 Location: Richmond, VA iTrader: (0)	I have 18 x 9 Front , offset +38, 18 x10 Rear , offset +27 with 245/40 front and 285/35 rear. This on suspension with a slight drop, figure 3/8". No rub up front. Slight rub with the rears on heavy g-outs/big abrupt road dips. In the rear the rub is occurring at the inside top of the wheel, not at the fender opening. I think you'll be ok. Hope that helps. __________________ \|=.-._.-._.-._.-._.-._.-._.-._.-._.-._.-._.-.=\| Silbergrau A08 / Sepang Brown LSD6 / Carbon Leather 4MY (1 of 3, this combo) RAC RG63 \| Conti EC-DW \| GC/Koni-Dinan \| Rogue RSM \| Arqray \| Autosolutions \| BMW brace \| Pinnacle tint
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02-20-2024, 01:22 PM	#3
86Zed Get off my lawn 932 Rep 1,159 Posts Drives: 6MT Join Date: Sep 2015 Location: USA iTrader: (7) Garage List 2023 GR Corolla [0.00] 2022 BMW X3 M40i [10.00] 2007 BMW Z4M Coupe [0.00] 2002 BMW 325xiT [0.00] 1991 BMW 318is [0.00]	I run the following setup lowered 1-1.5" on coilovers and ~2.5 deg of front camber. It rubs up front on full compression aggressive driving (track). Front: APEX FL-5 18×9" ET30 245/35/18 Rear: APEX FL-5 18x10" ET25 275/35/18 Your proposed setup has a lot more tire height up front but the rear should be just fine. Apex's own fitment guide is a solid resource to use here https://apexwheels.com/fitment-guide...-fitment-guide Can compare your own setup using a tool similar to this https://www.willtheyfit.com/index.ph...9.5&offset2=22 Last edited by 86Zed; 02-20-2024 at 01:27 PM..
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