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Robert, BMW Technician
Category: BMW
Satisfied Customers: 4708
Experience:  Fully qualified 19+yrs exp/self employed technician in the UK
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I have just bought a BMW X1 Xdrive23d SE and noticed that the

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I have just bought a BMW X1 Xdrive23d SE and noticed that the front and rear tyres are not the same size. Front are 225/45 R18 and the rear are 255/40 R18. Is this correct or is it a potential problem?
Ron Willerton


Hopefully i can help..

The specs for that particular car are correct - so no problems as far as i can see with what you have and my data as below..

On an 18"

Front = 225/45 R18 91V

Rear = 225/40 R18 95V

I do hope this helps

Robert and other BMW Specialists are ready to help you
Customer: replied 3 years ago.

The rear sizes are 255/40 not 225/40 is that still OK?

Hi..there..sorry..just noticed that was a miss type? - yes that size 255/40 R18 95V is absolutely fine on the rear axle..apoligies for the mix up there...Rob