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      07-10-2014, 06:56 PM   #1
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295/40/20 On Fronts ? 2010 E70

Has anyone run a 295/40/20 on the fronts ?

Just picked up a 2010 X5d and buying a couple of wheel and tire sets for it.

I have a deal on some Pirelli Ice & Snow 295/40/20s that I'd run for a winter set up but wondering if I can run them on the 20" x 10" rims up front ? Rears will take them fine on the 20" x 11" but unsure on clearance up front ?

Anyone ?
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      07-11-2014, 12:45 AM   #2
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Holly molly that's really wide? I don't think you want to go too wide for winter tires from what I heard.
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      07-11-2014, 10:08 AM   #3
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Quote:
Originally Posted by X5ist View Post
Holly molly that's really wide? I don't think you want to go too wide for winter tires from what I heard.
I'm not worried about the width of the 295/40/20 for winter where I live - we mostly get rain and occasional slushy snow. The Pirelli Ice & Snow are great in these conditions as I ran them on my Touareg for a few seasons in a 275/40/20 square set up.

I'd run the 275/40/20 on the fronts, but the outer diameter of the 275/40/20 tire is 728mm and the 295/40/20 is 744mm so I'm worried about running that much of an OD difference even though 16mm/0.6" is not that much.

So, I'm only really worried about the clearance for the 295/40/20 on the fronts so I can run a 295/40/20 square set up for winter. I may just end up test fitting them and will post my feedback. If they don't clear, I'll put the 275/40/20 on the front and see how it works out with the OD differential.

If anyone has experience mounting a 295/40/20 on the front, I'd still like to hear any feedback - thanks
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      11-10-2014, 01:39 PM   #4
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295/40/20 in front, will it fit E70 X5?

Quote:
Originally Posted by Meff View Post
... So, I'm only really worried about the clearance for the 295/40/20 on the fronts so I can run a 295/40/20 square set up for winter. I may just end up test fitting them and will post my feedback.
I'm struggling with the same issue. I have summer tyres 285/35R22 and in front they are almost in contact with a bolt of bar connected to the steering system (or was it the suspension...). 295/40/20 is a bit larger in diameter though.

Have you had the possibility to test fit them or found any other solution? Anybody, has someone other experience in this matter?
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      11-10-2014, 09:12 PM   #5
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Quote:
Originally Posted by Meff View Post
Has anyone run a 295/40/20 on the fronts ?

Just picked up a 2010 X5d and buying a couple of wheel and tire sets for it.

I have a deal on some Pirelli Ice & Snow 295/40/20s that I'd run for a winter set up but wondering if I can run them on the 20" x 10" rims up front ? Rears will take them fine on the 20" x 11" but unsure on clearance up front ?

Anyone ?
I tried it ... Will not clear upper control arm and will not clear the louvered vent in front wheel well when wheel is fully turned left or right ... Tire is too wide.

Photo below is a 275/45-20 tire. This size barely fits. Also rubs the louvered vent and will break a couple of slats.
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      11-11-2014, 03:18 PM   #6
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Quote:
Originally Posted by PAX5 View Post
I tried it ... Will not clear upper control arm and will not clear the louvered vent in front wheel well when wheel is fully turned left or right ... Tire is too wide.

Photo below is a 275/45-20 tire. This size barely fits. Also rubs the louvered vent and will break a couple of slats.
Thank you PAX5 for sharing this experience. I was about to buy 295/40-20 full round fingers crossed but would have ended selling those bloody tyres here in the end

So, if the 275/40-20 has the correct diameter for the front , what kind of solutions you have set in the rear if there's 11x20 vs the 10x20 in front? The original 315/35-20 is a bit tough decision as winter tyre... And there shouldn't be difference in diameter of the tyres with automatic transmission like the X5 has, right?

Last edited by Xtractor; 11-11-2014 at 03:25 PM..
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      11-11-2014, 05:13 PM   #7
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Quote:
Originally Posted by Xtractor View Post
So, if the 275/40-20 has the correct diameter for the front , what kind of solutions you have set in the rear if there's 11x20 vs the 10x20 in front? And there shouldn't be difference in diameter of the tyres with automatic transmission like the X5 has, right?
Use a separate set of wheels and tires for the winter. I don't use a staggered configuration. For the winter I use a square set up (front and rear same size, same width, same off-set). BMW style 209, 210, 334 and 335 are popular OEM wheels for this purpose.

Correct. You want to maintain the same tire diameter to avoid any transfer case and transmission problems.
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      11-11-2014, 10:27 PM   #8
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Quote:
Originally Posted by PAX5 View Post
Use a separate set of wheels and tires for the winter. I don't use a staggered configuration. For the winter I use a square set up (front and rear same size, same width, same off-set). BMW style 209, 210, 334 and 335 are popular OEM wheels for this purpose.

Correct. You want to maintain the same tire diameter to avoid any transfer case and transmission problems.
+1

I wont even experiment with diameters > 1% (F & R)
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