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      10-23-2021, 08:31 AM   #1
R34L15T
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22" Tyre Options

Hi Guys,

In search for front tyres. Currently running the following:

275/35/22 - Continentals
315/30/22 - P Zero

Want a bit more rubber so was wondering if the following would suit with out any issues

275/40/22
315/40/22

Thanks!
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      10-23-2021, 01:19 PM   #2
Auricom
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Quote:
Originally Posted by R34L15T View Post
Hi Guys,

In search for front tyres. Currently running the following:

275/35/22 - Continentals
315/30/22 - P Zero

Want a bit more rubber so was wondering if the following would suit with out any issues

275/40/22
315/40/22

Thanks!
Previous thread covering your inquiry in +5 sidewall sizing but also in regards to all-seasons.

But TLDR; is no issue since overall front and rear tire sizes are within 1%. And if you're fine with ONLY summer performance tire options.

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://g05.bimmerpost.com/forums/sh...9#post28042649

My detailed answer here:
https://www.bimmerpost.com/forums/sh...php?p=28042649
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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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      10-27-2021, 10:36 AM   #3
R34L15T
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Quote:
Originally Posted by Auricom View Post
Quote:
Originally Posted by R34L15T View Post
Hi Guys,

In search for front tyres. Currently running the following:

275/35/22 - Continentals
315/30/22 - P Zero

Want a bit more rubber so was wondering if the following would suit with out any issues

275/40/22
315/40/22

Thanks!
Previous thread covering your inquiry in +5 sidewall sizing but also in regards to all-seasons.

But TLDR; is no issue since overall front and rear tire sizes are within 1%. And if you're fine with ONLY summer performance tire options.

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://g05.bimmerpost.com/forums/sh...9#post28042649

My detailed answer here:
https://www.bimmerpost.com/forums/sh...php?p=28042649
Very insightful thank you!

Nearly 1.4 miles in that case (UK)

I remember seeing somewhere on the idrive menu where you can actually adjust the mph difference? Cannot remember where
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      10-27-2021, 04:47 PM   #4
James_G0540i
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I believe Michelin now offer a 22" option too.
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      10-27-2021, 07:42 PM   #5
R34L15T
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Quote:
Originally Posted by James_G0540i View Post
I believe Michelin now offer a 22" option too.
Quote:
Originally Posted by James_G0540i View Post
I believe Michelin now offer a 22" option too.
Possibly - i was trying to see if it would be ok to use 40 vs 35 on the fronts.
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