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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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Old 02-19-2013, 12:12 PM
BBear BBear is offline
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Location: Brooklyn
Join Date: Feb 2013
Posts: 1
Mein Auto: 2008 X5 3.0
Trying to beef up my 2008 X5 for the summer

Hey All
Looking to beef up my Rim & Tires on my 2008 X5, I'm thinking either going 20" or 21" on the rims right now. Anyone know how big of a tire I can go without losing any performance at either size rim to give it a more beefy look on the road?
Any sample pics would be helpful
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Old 02-19-2013, 02:24 PM
a51fff a51fff is offline
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Location: uk
Join Date: Feb 2013
Posts: 16
Mein Auto: 2011 X5 50i
i use to have a 2007 x5 4.8i and it had 21" bmw v spoke 239 wheels. they looked really good. if yours is a se then you have to have the side steps and aero kit, if m sport then the performance 21" wheels from bmw look the best i think, i have them on my current x5.
hope im helpful!
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Old 02-19-2013, 02:30 PM
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Emission Emission is offline
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Location: North of Los Angeles, CA
Join Date: Dec 2001
Posts: 10,702
Mein Auto: Schnelle Autos
Any increase in size or width nearly always means an increase in weight = loss of performance with regards to acceleration, top speed and fuel economy. Braking may be worse too, but that depends on the tire compound.

That said, take a look at the X5 M wheel/tire package for ideas.

- Mike
I am fortunate to have unique press cars delivered weekly, but I own:

'16 BMW X5 xDrive35i M Sport 8AT
'15 Volkswagen Golf TDI 6MT
'86 Porsche 911 Turbo 4MT

Gone, but never forgotten... my E70 X5 35d, E90 335i, E46 330i, E36 328i, E70 X5 3.0si, E53 X5 3.0i.
Read my work as Editor-in-Chief for Autoweb and Autobytel!
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Old 02-19-2013, 11:12 PM
ard ard is offline
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Location: Sierra foothills, California USA
Join Date: Jul 2009
Posts: 15,847
Mein Auto: '12 X5 35d/E39M5/996TTX50
Going with bigger rims and smaller sidewalls will reduce handling and make your ride harsher. Especially one rough/potholed roads
Keep it as simple as possible...but no simpler.
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