18x8 et38 255/35/18 all the way around?

dayusmc · 11-15-2012, 10:14 AM

Well yet another question on tire size...
I have 18x8 et38 all the way around on my wifes car (2006 325ci) with 235/40-18 on it and fits just fine.. The tires are not as wide as I would like.
I have the same rims for my car (2001 325ci) and am wondering if I can go with 255/35-18 on them all the way around with out rubbing.
Stock Tire diameter is 25.0
235/40-18 is 25.4 (wifes car)
245/40-18 is 25.7 (I think it might be to tall)
255/35-18 is 25.0
Tires she has and I want are Kumho Ecsta 4x

Gary@Tirerack · 11-17-2012, 11:48 AM

Quote:

Originally Posted by dayusmc

Well yet another question on tire size...
I have 18x8 et38 all the way around on my wifes car (2006 325ci) with 235/40-18 on it and fits just fine.. The tires are not as wide as I would like.
I have the same rims for my car (2001 325ci) and am wondering if I can go with 255/35-18 on them all the way around with out rubbing.
Stock Tire diameter is 25.0
235/40-18 is 25.4 (wifes car)
245/40-18 is 25.7 (I think it might be to tall)
255/35-18 is 25.0
Tires she has and I want are Kumho Ecsta 4x

The minimum recommended rim width for mounting on 255/35R18 tires is 8.5" wide. For 8" wide wheels, stick with 235/40R18.

dayusmc · 11-18-2012, 10:17 PM

I know that is the "minimum suggested" width, but I have had 255s on 8 inch rims before and they worked just fine...

Kyle

dayusmc · 11-21-2012, 06:06 PM

Well I bought one tire to try it out on my spare rim Kumho Ecsta 4x 255/35-18 on my 18X8 et38 Rim... I mounted the tire and tried it out on the front and it fit with no rubbing at all!! I took it for a test ride and we also pushed front end down, and no rubbing. Tire looks good on the rim, it is a hair wider then the rim but should be good if I accidently hit the curb. I think 245 would be the perfect fix/look but I think the 245/40-18 (25.7 diameter) is to tall...The 255/35-18 is 25 diameter and that is stock height. On my wife's car when going to a 25.4 diameter tire it seem to make the car feeler slower and I am afraid that a 25.7 will be even worse.

So now that I know they will fit, here is my next question.. I have original M3 front rims that are 18x8 et47 I believe. Would it look better to have 18x8 et47 in front and 18x8 et38 in the back? If I am not mistaken, the back rims look more sunken into the wheel wells then the front. So would the two different offsets look better and would it handle alright. I know there is a lot of talk about square setups being better. Would this still be considered square with 255/35-18s on front and back? Thanks for everyone's input!!!

dayusmc · 11-28-2012, 07:38 AM

So here it is....
255/35-18 Escta 4X on 18x8 et38 fit perfect with NO fender rolling! They look great and do not have the tire stretch lock at all.

Kyle

11-15-2012, 10:14 AM	#1
dayusmc Registered User Join Date: May 2011 Location: Hillsborough, NJ Posts: 175 My Ride: 01 325ci & 06 325ci View My Garage	18x8 et38 255/35/18 all the way around? Well yet another question on tire size... I have 18x8 et38 all the way around on my wifes car (2006 325ci) with 235/40-18 on it and fits just fine.. The tires are not as wide as I would like. I have the same rims for my car (2001 325ci) and am wondering if I can go with 255/35-18 on them all the way around with out rubbing. Stock Tire diameter is 25.0 235/40-18 is 25.4 (wifes car) 245/40-18 is 25.7 (I think it might be to tall) 255/35-18 is 25.0 Tires she has and I want are Kumho Ecsta 4x

11-28-2012, 07:38 AM	#5
dayusmc Registered User Join Date: May 2011 Location: Hillsborough, NJ Posts: 175 My Ride: 01 325ci & 06 325ci View My Garage	So here it is.... 255/35-18 Escta 4X on 18x8 et38 fit perfect with NO fender rolling! They look great and do not have the tire stretch lock at all. Kyle Attached Thumbnails

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread:

11-18-2012, 10:17 PM	#3
dayusmc Registered User Join Date: May 2011 Location: Hillsborough, NJ Posts: 175 My Ride: 01 325ci & 06 325ci View My Garage	I know that is the "minimum suggested" width, but I have had 255s on 8 inch rims before and they worked just fine... Kyle

11-21-2012, 06:06 PM	#4
dayusmc Registered User Join Date: May 2011 Location: Hillsborough, NJ Posts: 175 My Ride: 01 325ci & 06 325ci View My Garage	Well I bought one tire to try it out on my spare rim Kumho Ecsta 4x 255/35-18 on my 18X8 et38 Rim... I mounted the tire and tried it out on the front and it fit with no rubbing at all!! I took it for a test ride and we also pushed front end down, and no rubbing. Tire looks good on the rim, it is a hair wider then the rim but should be good if I accidently hit the curb. I think 245 would be the perfect fix/look but I think the 245/40-18 (25.7 diameter) is to tall...The 255/35-18 is 25 diameter and that is stock height. On my wife's car when going to a 25.4 diameter tire it seem to make the car feeler slower and I am afraid that a 25.7 will be even worse. So now that I know they will fit, here is my next question.. I have original M3 front rims that are 18x8 et47 I believe. Would it look better to have 18x8 et47 in front and 18x8 et38 in the back? If I am not mistaken, the back rims look more sunken into the wheel wells then the front. So would the two different offsets look better and would it handle alright. I know there is a lot of talk about square setups being better. Would this still be considered square with 255/35-18s on front and back? Thanks for everyone's input!!!