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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > 20" Wheels Ride Quality?
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      06-09-2019, 04:14 PM   #1
hokiedood
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20" Wheels Ride Quality?

I currently have 18" wheels on my 340i M Sport. I've seen some pretty nice 20" wheels that I'm considering.

Anyone care to share their experience with 20" wheels?
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      06-11-2019, 09:36 AM   #2
blmcquig
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I hate them. My 335i came with the 405M wheels on it, and I despise them. Switching from run-flats to Pilot Sport 4S has made a huge difference, but they are still pretty awful. Lots of noise, bumps are uncomfortable, etc. Winter tires are sottozeros on 18s, and ride like a dream. I have a 94 Mazda RX7 with 18s and RE71R tires, and it almost rides better than the F30 on 20s.
The 20s look cool though, so there is that. Tires were $1500 for the set, and that made me really consider getting rid of the 20s for a set of 400M in 18.
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      06-12-2019, 03:07 AM   #3
hokiedood
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I was actually think about those wheels. They look so damn good.
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      06-12-2019, 01:53 PM   #4
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Ride quality is definitely going to suffer when going from 18's to 20's, ESPECIALLY if you run a 20" RFT tire. The difference won't be as bad if you currently have 18" RFT and move to a 20" non-RFT. Something to consider is the condition of the roads in your area. You may want to think twice about 20's if the roads are in poor condition.
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      06-12-2019, 02:01 PM   #5
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If 20" wheels and comfort (to the extent possible) are a must, coilovers with individual compression and rebound controls will help.

Otherwise, 19" wheels would be the optimum size.
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