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Old 02-10-2015, 11:37 PM
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Best Tire for COMFORT (Only Criteria)

I have a 2008 X5 4.8i with the 20 inch sport wheels. When I bought the car I was super frustrated, the car has the OE run flat tires and they are horrible. I then got some Blizzaks on 19inch wheels and I started to LOVE my X5. The ride became 10 times quieter, the cars ride became very SOFT, and the car completely stopped pulling all over the road. In MA our roads are very bumpy and uneven so cars hit bumps and pull side to side.

I have decided after winter to get new tires for my 20's. I wanted to get input, I cant be the only one who had these requirements for a tire. Here is what I want in order:
  1. Comfort Comfort comfort
  2. No more Pulling (maybe related to wide rims, but I'm sure it can be reduced with the right tires).
  3. Quiet (reduced road noise). Don't car about winter performance as I have winter tires.
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Old 02-10-2015, 11:53 PM
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Get rid of the runflats. That will solve a large degree of your problem. Put a can of liquid tyre repair in your trunk. Call it a day.

I'd go for Michelin Diamaris which are OEM spec on the e53 4.8is.

You will get a degree of tram-lining with wide tyres (ie. your 20" rims) but a good alignment and ensuring all your bushes are healthy should eliminate that.
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Old 02-10-2015, 11:57 PM
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Quote:
Originally Posted by SMOKEY53 View Post
Get rid of the runflats. That will solve a large degree of your problem. Put a can of liquid tyre repair in your trunk. Call it a day.

I'd go for Michelin Diamaris which are OEM spec on the e53 4.8is.

You will get a degree of tram-lining with wide tyres (ie. your 20" rims) but a good alignment and ensuring all your bushes are healthy should eliminate that.
Tramlining! that's what its called. Seems like tires with deepr tread would reduce this effect more. So is it better to get all season tires versus summer tires?
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Old 02-11-2015, 12:39 AM
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It's more to do with the width of the tyre that causes the car to follow the ruts in the road. Low profile tyres doesn't help as there is not much flex in the sidewall, and especially low profile run flats which have extra stiff sidewalls. Excessive toe and camber can also worsen the problem. The tread pattern won't make any difference.

I don't know much about winter tyres because I live in Australia, but it sounds like you already have a set of winter wheels with dedicated winter tyres - so I'd go for a set of summer tyres on your 20's. After all, you've got a 4.8i - don't hold her back with compromising tyres!

There are about a billion threads on tyre choice for the OEM 20's on this forum.....a quick search will tell you all you need to know.
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Old 02-11-2015, 12:58 AM
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Quote:
Originally Posted by 500e View Post
I When I bought the car I was super frustrated, the car has the OE run flat tires and they are horrible.
WHICH oe runflats did you have? Any old run flat? or was there a specific tire?
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Old 02-11-2015, 01:03 AM
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WHICH oe runflats did you have? Any old run flat? or was there a specific tire?
I dont remember I think its Bridgeston, why would you like to buy them?
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Old 02-11-2015, 10:16 AM
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On my second set of Toyo Proxes ST IIs, for 20" Staggered wheels.
Great ride, good handling and pretty decent all season tire.
They look great too...
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Old 02-11-2015, 11:22 AM
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I dont remember I think its Bridgeston, why would you like to buy them?
I'm sure he doesn't. He's asking because the oft stated belief is that run-flat tires "suck" but very rarely does anyone make that statement and then offer what brand and model tire they have experience with. How old they are and how many miles of use they have, etc. Just as there are good and bad non-run flat tires there are good and bad run-flat tires.
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Old 02-11-2015, 11:56 AM
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Quote:
Originally Posted by 500e View Post
I dont remember I think its Bridgeston, why would you like to buy them?
People seem to treat "run flat" like it is a model.

I have very, very rarely head people complain of Michelin Run Flats. Ive seen a few, but not many- to my recollection.

Most of the complaints are duelers, and other tires. BMW shipped multiple different tire models from the factory...just Becuase yours came with one set of tires does NOT mean everyone got the same. Us diesel buyers got the better Michelins.

my 2 cents.
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Old 02-11-2015, 12:54 PM
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And in my experience, RFTs tend to become noisy, 'rougher' riding etc., as they age, and esp at end of tread life.
The OP neglected to tell us are they 'new/sorta new/old'...

GL, mD
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