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#1
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Pros and Cons in changing from 20" to 21" rims
eg. Is it true that 21" highers the consumption? Or that 20" is faster than 21" when speeding?? thanks, any information would be helpful! |
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#2
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The lighter the wheel better the fuel economy. So if the 21"weels+tire is less in weight than the 20" you will get better fuel economy.
I am not sure if the speed will change because you will probably compensate for the increased wheel diameter with a tire with lower profile. Technically, if the wheel+tire diameter is bigger then the speed will be higher (your speedo and odometer will be shot though and will show lower speed and distance respectively)
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2008 E70 X5 3.0si Sport | Prem | Adaptive Drive | Tech. | Cold Wthr | Rear Climate | 3rd Row | Running Boards | iPod/USB 2019 G30 530e Sport | Adaptive | Drv. Assist+ | HK | HOV Access 2018 F83 M4 Comp. | Exec | DCT | First M Car 2009 E93 335i (Sold) Sport | Prem | 19" 230 | Logic 7 | iPod/USB | Sat | HD Radio | Comfort Access | Heated Seats | Pure Joy E36 328is GoKart (Sold) Manual | HK | Trip Comp. | 17" Rims |
#3
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Pros:
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Wake up every day that would be a start. |
#4
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thank you guys!
I ll think of it, although I love the way the feric gray 21" look on other x5 I've seen in this forum. What worries me most is as correctly stated :
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#5
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the jump from 20 to 21 is more negligible than 18 to 20
I had 20's on mine when I took delivery, changed them to 21's about 2 weeks later. love them but have only put 15,000k's on them so far |
#6
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Quote:
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#7
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Quote:
No issues with rubber either, and as long as u have fitted by BMW, your instruments will be set to reflect true speed etc. get them and stop being an average joe!
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2008 E70 4.8i M Sport, Aero Package, Saphire Black on Black 215 21" wheels, Comfort Seats, Active Headrests, Sunroof, Premium Sound, Einsenmann Exhaust Inbound: ACS Interior, Carbon Roundels and DVD System. 2005 E53 X5 4.8is (donated to wife) 2007 E90 323i M Sports Tourer (retired) 2006 E46 M3 Cabriolet (retired) 2001 E53 X5 4.4i Sports (retired) |
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