275/40/18

mmmcakes · 12-23-2011, 01:49 PM

Okay, i hate low profile tires, i like meat on my wheels, for comfort and looks. I'm a muscle car guy and the stretched look makes me cringe. I'm about to get a set of 18's and want to run a taller sidewall than average on a 275 rear.

Wheels are
18 x 8.5 ET 35
18 x 9.5 ET 33

The tires I am considering are the Continental ExtremeContact DW

So, I'm trying to keep the overall rolling diameters as close as possible for the drive train, but also keep the fat tires. I'm not at all worried about my speedometer changing from stock as the stock speedometer is already 5 mph fast.

Using the tire calculator would this work:

245/45/18 fronts
275/40/18 rears

Alternatively would this:

235/40/18 fronts
275/35/18 rears

or

245/40/18 fronts
275/35/18 rears

I'm currently freaking slammed on H&R sports/Bilstein sports, and I hate the reverse rake, the ride and the tucked rear tire. So I will likely be returning the springs to stock and/or cutting the stock springs for a tad lower ride. So keep that in mind on fitment.

Thanks, and please keep your comments positive, my personal taste is just that so keep yours to yourself.

Also I don't wanna hear recommendations that I go with 30 profile rears.

bmw325i · 12-23-2011, 01:55 PM

235/40/18 front 265/35/18 is the proper size you'd be fine going a little wider.

VMRWheels · 12-23-2011, 06:09 PM

With those wheel specs I would recommend a 235/40/18 front and 265/35/18 rear. You may be able to get away with slightly wider tires overall, however the 235/265 combo is a rub free fit on stock suspension. I would definitely not recommend a 245/45/18 and 275/40/18 for your car, as it is too tall. Aside from the speedometer being too far off, it's harder on your brakes.

Additionally, I would not recommend cutting the springs. Your handling characteristics would likely be unpredictable. If you are looking to even out the front and rear wheel gap/rake, you should invest in some coilovers.

Stucks · 12-23-2011, 06:56 PM

245/40/18 fronts
275/35/18 rears

ttbmer · 12-23-2011, 07:08 PM

This Is my set up. E92

stock size

225 40 18 25.08"

255 35 18 25.02"

My size

255 35 18 25.02" 0.24% diff

275 35 18 25.57" 2.16% diff

remmib · 12-24-2011, 07:01 AM

Quote:

Originally Posted by Stucks

245/40/18 fronts
275/35/18 rears

+1

12-23-2011, 01:49 PM	#1
mmmcakes Private First Class 6 Rep 112 Posts Drives: 07 e90 335xi Join Date: Jun 2010 Location: Springfield, MO iTrader: (1)	Okay, i hate low profile tires, i like meat on my wheels, for comfort and looks. I'm a muscle car guy and the stretched look makes me cringe. I'm about to get a set of 18's and want to run a taller sidewall than average on a 275 rear. Wheels are 18 x 8.5 ET 35 18 x 9.5 ET 33 The tires I am considering are the Continental ExtremeContact DW So, I'm trying to keep the overall rolling diameters as close as possible for the drive train, but also keep the fat tires. I'm not at all worried about my speedometer changing from stock as the stock speedometer is already 5 mph fast. Using the tire calculator would this work: 245/45/18 fronts 275/40/18 rears Alternatively would this: 235/40/18 fronts 275/35/18 rears or 245/40/18 fronts 275/35/18 rears I'm currently freaking slammed on H&R sports/Bilstein sports, and I hate the reverse rake, the ride and the tucked rear tire. So I will likely be returning the springs to stock and/or cutting the stock springs for a tad lower ride. So keep that in mind on fitment. Thanks, and please keep your comments positive, my personal taste is just that so keep yours to yourself. Also I don't wanna hear recommendations that I go with 30 profile rears.
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12-23-2011, 01:55 PM	#2
bmw325i Major General 239 Rep 5,118 Posts Drives: 2006 BMW 325i Join Date: Oct 2010 Location: United States iTrader: (8)	235/40/18 front 265/35/18 is the proper size you'd be fine going a little wider.
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12-23-2011, 06:09 PM	#3
VMRWheels BimmerPost Supporting Vendor 2130 Rep 25,972 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	With those wheel specs I would recommend a 235/40/18 front and 265/35/18 rear. You may be able to get away with slightly wider tires overall, however the 235/265 combo is a rub free fit on stock suspension. I would definitely not recommend a 245/45/18 and 275/40/18 for your car, as it is too tall. Aside from the speedometer being too far off, it's harder on your brakes. Additionally, I would not recommend cutting the springs. Your handling characteristics would likely be unpredictable. If you are looking to even out the front and rear wheel gap/rake, you should invest in some coilovers. __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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12-23-2011, 06:56 PM	#4
Stucks Lieutenant Colonel 180 Rep 1,911 Posts Drives: 2017 F30 340i Xdrive Join Date: Oct 2010 Location: Montgomery County, MD iTrader: (12)	245/40/18 fronts 275/35/18 rears __________________ Current: 2017 F30 340i xdrive Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold) Last edited by Stucks; 12-23-2011 at 07:59 PM..
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12-23-2011, 07:08 PM	#5
ttbmer Lieutenant Colonel 75 Rep 1,943 Posts Drives: space gray on black 07 335i Join Date: Jul 2010 Location: las Vegas nv iTrader: (15)	On PSS This Is my set up. E92 stock size 225 40 18 25.08" 255 35 18 25.02" My size 255 35 18 25.02" 0.24% diff 275 35 18 25.57" 2.16% diff __________________ PROCEDE, PWM Vishnu Kit, AR catless DP, BMS DCI, Helix IC, P3 gauge, 25% window tint, mattblack window trim, mattblack roof wrapped. Vorstainer CSL trunk, CF wrapped interior, 18'' Forgestar F14 Matt black, quaife LSD, M3 suspension bits, Mtech front bumper). http://www.youtube.com/watch?v=b8JIB8C8HDA
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