Home > Wheels & Tyres > staggered wheels-21" tyre sizes-rolling radius |
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stan Site Moderator Member Since: 13 Jul 2010 Location: a moderate moderated moderator moderating moderately in moderation Posts: 35264 |
oh dear.......... don't fit them they are incorrect wheels for the FF...
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31st Dec 2014 6:24pm |
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tony66 Member Since: 30 Nov 2014 Location: fife Posts: 92 |
yes-they came off a disco with a dress ...but are they not around same weight?
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31st Dec 2014 6:35pm |
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Cam-Tech-Craig Member Since: 03 Aug 2011 Location: Gloucestershire Posts: 16280 |
More likely made for an X5 sir... I shouldn't think they would work on any LR |
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31st Dec 2014 6:45pm |
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tony66 Member Since: 30 Nov 2014 Location: fife Posts: 92 |
you may be correct ...they were fitted to a rrs but the rolling radius is fairly different even at a glance-not long sold my x5 too -wonder if he had transfer box issues lol |
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31st Dec 2014 6:54pm |
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Vogue Member Since: 31 Jan 2008 Location: on the hill Posts: 3739 |
WTF in plain English
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1st Jan 2015 12:48am |
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miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
They are of X5 origin, only BMW would be so stupid to fit different sized wheels to a full time 4x4. Having said that the wheels should fit but you'll either have to run X5 tyre sizes, which will be Cos they are runflats, or, if they didn't set you back too much and you really like them, you could always flog the 2 bigger rear wheels and buy 2 smaller fronts to make an equal size set
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1st Jan 2015 2:50pm |
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tony66 Member Since: 30 Nov 2014 Location: fife Posts: 92 |
as an ex x5 owner i know they run different profiles front and rear on the x5 to keep rolling radius the same on staggered sets...
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1st Jan 2015 3:01pm |
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miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
Are but you could equally sell them off one at a time, for all those careless drivers Yesterday I couldn't spell Engineer... Today I are one!
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1st Jan 2015 3:18pm |
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fisha Member Since: 25 Sep 2009 Location: Scotland Posts: 1350 |
If someone wants to mod the rr look, then so be it, chill. That being said Tony, there are issues already discussed which do need to be considered seriously when it comes to the rr.
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4th Jan 2015 11:10pm |
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miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
^^ Fitting the same size tyres on different width rims will give you a different rolling radius, typical staggered wheel sets have a lower profile tyre on the rear because its wider. Example sizes ( random fleabay) FRONTS: 275/40x20 -- REARS: 315/35x20.
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4th Jan 2015 11:47pm |
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fisha Member Since: 25 Sep 2009 Location: Scotland Posts: 1350 |
Agreed. The example size you list seems to match, but if you try and scale up to match the stock diameter of the rr, I found it difficult to get a good matching pair of sizes. It was a while ago now, so there may be different options now. I just remember thinking it would be easiest just to have 4 matching rims. V8 or else ... |
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5th Jan 2015 9:02am |
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stan Site Moderator Member Since: 13 Jul 2010 Location: a moderate moderated moderator moderating moderately in moderation Posts: 35264 |
so fitting a 255 50 20 on a 8.5j rim will give a different rolling radius to fitting to a 9.5j rim? me thinks you are mistaken.. ... - .- -. Y. O. L. O. . |
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5th Jan 2015 9:28am |
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miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
Agreed Stan, but it will make one hell of a difference if you fit a 255 on a 10.5J rim compared with a 8.5J, you will get to the point where the tread is not wide enough for the rim and the tyre walls will taper in to the tread, this will reduce the ratio between the wall and the tread and thus reduce the height. I only know this from shoehorning 145's on my cooper 'S' reverse rims (5J), in my younger days, because the car ate the tyres too quickly and I couldn't afford the 165's it should have had, strange, I could never work out why the tyres never seemed to last on the front
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5th Jan 2015 10:05am |
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miggit Member Since: 12 Jul 2014 Location: Milton Keynes Posts: 3657 |
You can get 275/45/r21 and 315/40/r21 tyres from Continental, as long as you can find a tyre that's 40 mm wider for the rear and 5% less aspect ratio, you should be good. Having said that, it would appear that you've shot yourself in both feet and the gentleman's veg department as there are very few 21" tyres to start with, couldn't you have got them in 20"? It would have made your life a lot easier Yesterday I couldn't spell Engineer... Today I are one!
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5th Jan 2015 10:28am |
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