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      09-16-2021, 05:55 PM  
Auricom
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Drives: 2020 X5 xDrive40i M Sport
Join Date: Jan 2012
Location: DMV

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As others have stated there will be changes to your calc speed:

Going +5 in front increases overall diameter by 96mm to 114mm = +14%

When speedometer reads 60 km/h actual speed will be 62.2 km/h

Revs per mile is 4% less, from 682 down to 658.

All what ever size changes you make, you want to ensure there is 1% or less differentiation between front and rear cause well xDrive.

https://www.wheel-size.com/calc/?whe...cl=50mm&sr=0mm


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You're not going to have any +5 options for 22" all seasons.

There are no 275/40R22 + 315/35R22 all seasons listed on TireRack and you'd need to either stick with OEM 275/35R22 + 315/30R22 or go 285/40R22 + 325/35R22.

275/40R22 + 315/35R22 = No A/S
https://www.tirerack.com/tires/TireS...earDiameter=22

Sticking to your +5, 285/40R22 + 325/35R22 = 1 A/S
https://www.tirerack.com/tires/TireS...earDiameter=22

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OEM 275/35R22 + 315/30R22 = 1 A/S
https://www.tirerack.com/tires/TireS...earDiameter=22

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Current BMWs - '20 X5 xDrive40i M Sport, '20 BMW M550i | Past BMWs - '03 E39 540iT M Sport, '06 E53 4.8is, '11 E70 M Sport LCI

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