21" rims

[onslaught]

hi guys,
interested in putting 21" for my E65. was wondering if anyone has done it, is the ride any good after or does it feel like hard like a sports car?

 

[Big Daddy]

I think you would bend rims, flatten tires and the ride would be poor, not to mention it would be ugly! Please do not do that to a 7er!

 

[onslaught]

wat do u suggest then? 7s come with 20" from BMW anyway.
do lower profile tyres wear faster?

 

[nadroj]

.....no the 7s come with 18" wheels stock. and umm 21"..............

 

[Average Jae]

21" ... well if you end up getting them, make sure your brakes could handle the increase in weight.

as for low profiles wearing out faster: not true. but if you get ultra summer low profile tires or such with low wear ratings, yea you'll go through them pretty fast.

 

[onslaught]

hm, my bad, i meant you could get 20" from BMW for the 7. well, i was just looking at rims for the 7, and there arent many designs where 20" or below dont look weedy on the car.

at the moment im running on standard 18s, how much diff in weight can it be if i moved to 21. will it be obvious?

 

[RossW]

.....no the 7s come with 18" wheels stock. and umm 21"..............

19" are stock, the runflat option is a 18" wheel. And there are multiple options thru BMW for 20"

18" Runflat option.

20" Style 32 BMW

 

[RossW]

hm, my bad, i meant you could get 20" from BMW for the 7. well, i was just looking at rims for the 7, and there arent many designs where 20" or below dont look weedy on the car.

at the moment im running on standard 18s, how much diff in weight can it be if i moved to 21. will it be obvious?

When i went from the 18" runflats to the 20" style 32 I noticed a small tradeoff in acceleration, but then with 438hp it was not that noticable. I would put the weight difference at about 5-8 pounds per wheel.

 

[Tom]

I have 20" wheels on my FX and the ride is pretty harsh. I would imagine the only concern about getting larger wheels would be the tires not offering enough cushion against larger impacts from potholes.

 

[onslaught]

oh gee, seems like quite a problem here then. do u reckon 20" would still be good enuff for a 7? whats the fattest u can put for the rear? 295?

 

[Rtrn2Sndr]

I actually saw 22s on a 760Li. the guy cracked one of the rims ($2K each) when he hit a pothole... also, he couldnt turn the wheel all the way, b/c the tire hit the wheel well.

 

[Big Daddy]

Did it look like a wagon from the pioneer days! Hehe...

 

[onslaught]

does anyone know how heavy each of the standard 18" rims weigh?
also, is there a website where they tell you how heavy each rim weighs? i'd like to be able to pick out the lightest possible wheel next time, so as not to weigh my car down.. probably gonna stick to 19s since they seem to be the designed size for the 7.