Harsh ride in X3 gen 1 fixed with good result

R1000K3 · 08-08-2012, 11:48 AM

The X3 gen 1 ride quality is known to be notoriously harsh. My car has been provided with 235/50/18 front and 255/45/18 rear from the beginning.

I've know changed to the stock Volvo XC90 tyre dimension in all four corners. This is 235/60/18, which looks a lot better (beefier) and provides an immense improvement in riding quality in all situations.

The pic below is in heavy rain and low light with the mobile but it shows the proportions are even better than the stock 18" wheels that looks too low for this type of car.

More rubber FTW

C ///M · 08-09-2012, 04:35 PM

Or you could buy the Brand New KW Variant 2 Coilovers I have for sale here:
http://x3.xbimmers.com/forums/showthread.php?t=718169
$1,600 shipped! $2,300 Retail; usually available for $1,999. $400 discount and free shipping!

P.S. I think you went just a little too tall on that tire. I wonder how much your speedometer is off now. Probably quite a bit. I would have just gone to the F25 X3's size of 245/50R18 instead. That overall size definitely fits the E83 perfectly.

C ///M · 08-09-2012, 04:37 PM

Holy Cow...i just did the calculation, you're speedometer is almost 5 mph off at 60mph.

Definitely not a fan.

R1000K3 · 08-10-2012, 01:03 AM

Quote:

Originally Posted by C ///M

Or you could buy the Brand New KW Variant 2 Coilovers I have for sale here:
http://x3.xbimmers.com/forums/showthread.php?t=718169
$1,600 shipped! $2,300 Retail; usually available for $1,999. $400 discount and free shipping!

P.S. I think you went just a little too tall on that tire. I wonder how much your speedometer is off now. Probably quite a bit. I would have just gone to the F25 X3's size of 245/50R18 instead. That overall size definitely fits the E83 perfectly.

245/50/18 is a good looking dimension but not as comfy as 235/60/18.

I would be happy to have your KW coilovers but the shipping cost to Europe would be too high.

The speedo is now off by only 1.25 mph at 60 according to GPS, since it showed too much with stock tyres.

C ///M · 08-10-2012, 05:06 PM

Quote:

Originally Posted by R1000K3

245/50/18 is a good looking dimension but not as comfy as 235/60/18.

I would be happy to have your KW coilovers but the shipping cost to Europe would be too high.

The speedo is now off by only 1.25 mph at 60 according to GPS, since it showed too much with stock tyres.

Weird, my GPS told me I was right on at 60 as well, and I'm slightly less oversized at 275/40R19. Or maybe that's the difference, who knows...

If you want to PM me your address, I can find out shipping charges, I'm still negotiable, so I might be able to cover international shipping, plus I did advertise $1,600 shipped.

It'd be easier if you were more local, that's for sure, but I need to sell. Your location does say U.S.A. though, where'd you move?

08-08-2012, 11:48 AM	#1
R1000K3 Major 55 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	Harsh ride in X3 gen 1 fixed with good result The X3 gen 1 ride quality is known to be notoriously harsh. My car has been provided with 235/50/18 front and 255/45/18 rear from the beginning. I've know changed to the stock Volvo XC90 tyre dimension in all four corners. This is 235/60/18, which looks a lot better (beefier) and provides an immense improvement in riding quality in all situations. The pic below is in heavy rain and low light with the mobile but it shows the proportions are even better than the stock 18" wheels that looks too low for this type of car. More rubber FTW Attached Images Last edited by R1000K3; 08-09-2012 at 02:40 PM..
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08-09-2012, 04:35 PM	#2
C ///M Lieutenant 53 Rep 494 Posts Drives: '04 M3 & '07 X3 M-Sport Join Date: May 2010 Location: Chicago iTrader: (2) Garage List 2007 BMW X3M Prototype [10.00]	Or you could buy the Brand New KW Variant 2 Coilovers I have for sale here: http://x3.xbimmers.com/forums/showthread.php?t=718169 $1,600 shipped! $2,300 Retail; usually available for $1,999. $400 discount and free shipping! P.S. I think you went just a little too tall on that tire. I wonder how much your speedometer is off now. Probably quite a bit. I would have just gone to the F25 X3's size of 245/50R18 instead. That overall size definitely fits the E83 perfectly.
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08-09-2012, 04:37 PM	#3
C ///M Lieutenant 53 Rep 494 Posts Drives: '04 M3 & '07 X3 M-Sport Join Date: May 2010 Location: Chicago iTrader: (2) Garage List 2007 BMW X3M Prototype [10.00]	Holy Cow...i just did the calculation, you're speedometer is almost 5 mph off at 60mph. Definitely not a fan.
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