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BMW 5-Series (G30) Forum Wheels | Tires | Suspension | Brakes | Chassis Winter tire size for G30

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      09-27-2018, 04:56 PM   #1
akodi
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Winter tire size for G30

Hi all,
Wondering if anyone can shed some light as to if 225/50/R18 is a good winter tire size for the 2018 530 xi ?
I'm thinking of getting Nokian HAKKAPELIITTA 9 studded run flats.
The all seasons the car has are 245/40/R19 but I wanted to get a narrower tire for better traction.
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      09-28-2018, 10:46 AM   #2
remmib
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Just get the 245/45/18, it will be better on most surfaces. Narrow winter tires are only better in very loose snow.
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      09-29-2018, 10:35 PM   #3
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225 works, just check loading index greater than 97.
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      09-30-2018, 08:05 PM   #4
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Quote:
Originally Posted by leonw99999 View Post
225 works, just check loading index greater than 97.
Thank you!
So, 225/50/R18 is what I'm going to go with. However, the overall tire diameter is slightly different from the original tire size as such, revolutions per mile is 0.5% different from the original size. Would that deviation be considered excessive?
https://www.wheel-size.com/calc/?whe...cl=50mm&sr=0mm
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