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      07-06-2020, 02:06 PM   #1
Alpine535Msport
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Ride Comfort. 19" rims vs 20"rims.

I'd like feed back for those of you G05 owners who've driven the Standard Suspension X5 on 19" rims vs 20" rims. I love how much the loaner X5 with 19" rides. I like the look more of the 20's but I'm wondering how big of a difference in ride compliance/absorption is there between the 19's vs 20's.
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      07-06-2020, 02:15 PM   #2
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20”ers are they sweet spot of ride, looks, durability, and mixed weather driving.
Once you move larger than 20” wheels you sacrifice everything in ride and durability for looks. It’s just the way it is. You have to prioritize what’s most important. I am a cross country traveler and will not do it in any wheel larger than 20”.

Last edited by MystroX5; 07-06-2020 at 09:20 PM..
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      07-06-2020, 02:36 PM   #3
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Ride yes absolutely but performance. Hmmm. Donít think you lose anything not on the M50i anyway. Power output on these cars is more than enough to mean thereís nothing noticeable in normal road driving. Itís not like these cars are going on track.
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      07-06-2020, 07:00 PM   #4
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Quote:
Originally Posted by Unit View Post
Ride yes absolutely but performance. Hmmm. Donít think you lose anything not on the M50i anyway. Power output on these cars is more than enough to mean thereís nothing noticeable in normal road driving. Itís not like these cars are going on track.
Agree. There is 100% no performance lost on the M50. Ride comfort is subjective. I donít want a Lexus feel in a BMW. I love my M5 for its ride, you feel the road and it just accelerates violently.

When I put the M50 in comfort, Iím not sure Iíd want it to be any more soft.
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      07-06-2020, 07:37 PM   #5
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I have 21s and i love it. Perhaps because i have air suspension and the ride is plush albeit floaty. It eats nyc streets like churros. The only thing is tire choices are extremely limited.

The 40i shows its flaws when you push it beyond 90mph and its not meant for triple digits(my feeling with 21 p zeros) unless the car is moving forward and only forward. But still, intriguingly composed for an suv and 4600 pounds.
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      07-06-2020, 09:14 PM   #6
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Quote:
Originally Posted by Wrighterjw10 View Post
Agree. There is 100% no performance lost on the M50. Ride comfort is subjective. I don’t want a Lexus feel in a BMW. I love my M5 for its ride, you feel the road and it just accelerates violently.

When I put the M50 in comfort, I’m not sure I’d want it to be any more soft.
Not softer riding so much but road noise and expansion joints are noticeably quieter with 20” wheels. The harmonics are almost non existent through the wheels/tires compared to the 22” wheels/tires.
Yea, “performance” was the wrong word. I should have said “durability” on rougher roads. ( I changed it in original thread). You are not losing any performance with any wheel/tire set up on the X5. Acceleration is savage.

Last edited by MystroX5; 07-06-2020 at 09:23 PM..
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      07-07-2020, 09:20 AM   #7
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What I am most interested in is the difference I. RIDE COMFORT not performance for those who've driven the 19" vs 20" how big of a difference is there in the "Ride quality" i.e. impact harshness, quietness, how supple it feels over brick roads etc.
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      07-07-2020, 09:54 AM   #8
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If you care a lot about ride comfort than the air suspension option is a must have option. The difference between 19 and 20 is minimal in terms of ride quality. It's not like you are going to 22s which are noticeably stiffer with the narrower side walls. I would never get the 19s based purely on aesthetics. They look terrible.

The difference between air suspension and standard suspension is like night and day. I have owned G05s with and without air, both were on 20s, and i love the air suspension system.

Last edited by robby818; 07-07-2020 at 10:00 AM..
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      07-07-2020, 10:20 AM   #9
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we have air susp with 21"s, it's been extremely comfortable all around. of course with the exception to the bad roads there are some road noise.
we've taken it on countless long road trips and at times we've exceeded the speed limit without even knowing (~100mph).

as for the discussion of power/performance, we have the 40i and honestly, when its on sport, acceleration is more than enough to push to this fully packed vehicle to 100+ within seconds, cant imagine how much faster a 50i/M50 would be.

With that said, i would go with the 20"s, your probably not giving up much up in terms of ride comfort and getting what you really want.

EDIT: miss read you post about the standard susp. I cant speak to that since all I've driven was air susp.
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      07-07-2020, 11:04 AM   #10
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Quote:
Originally Posted by Alpine535Msport View Post
What I am most interested in is the difference I. RIDE COMFORT not performance for those who've driven the 19" vs 20" how big of a difference is there in the "Ride quality" i.e. impact harshness, quietness, how supple it feels over brick roads etc.
I have air suspension standard on the 45e. So not completely what you are asking. Sorry

I have 19 inch winters and 20 inch (staggered in Europe) summers.

I don't feel any real difference in comfort. Even knowing the winter tires have softer rubber.

I think you will be fine with 20 inch. They look better and are still comfortable.

I took the 19 inch winters because the sales guy said it would be ok for the look. I initially opted for the 20 inch. Well the look is ok but not more than that. I prefer the look of the 740M 20 inch summer tires. The 19 look just one size to small.

I have chosen bigger wheels in my past cars. For the looks it is better but the comfort is clearly less when you go for the largest wheels.

Like mentioned especially driving over joints and bumps. And we have a lot of them. It drove me crazy.

If the road is always perfect and you only do highway the difference won't be that much.

Performance is not really something I am after. I usually drive with my wife and kids in the car and that's a good way to lessen the uncontrollable need for performance.

If it is in your budget, the air suspension is really nice to have.
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