Dave1980

Got my mot coming up soon and got a querie. My car tyre size is supposed to be 225/45/17. Although the front tyres are 215/45/17 and pretty much brand new and been on the car since i got it.
Would this fail an mot because of this?

pslewis

I doubt the average MOT Tester would see the sizes .... anyway, I'm not sure that on the same axle it isn't a MOT Fail anyway.

Bean1984

iTrader: (3)

Long as they are both the same on the front thats all that matters. Bmws use wider rear tyres then the front mate so no need to worry

Dave1980

ok cheers, was curious about what would be the outcome. need some new rear ones so may just do that instead then.

cheers

JayM

As said above, size difference is fine as long as it is different axle.. ie you can have smallers on the front, or smaller on the rear, but not 2 smaller ones on the left, or 2 smaller on the right..

pslewis

Or you would just drive around in circles!!

gazzawrx

iTrader: (11)

Aslong as the tyres match across the axle its a pass. I'd imagine all mot testers generally check tyre sizes, i know i do when im testing, tyres are one thing were taught to check properly as its these that keep us on the road

legb4rsk

Many years ago I had a Renault 5 Gordini Turbo.I wanted to put wider tyres on the front.I was told it was illegal too put bigger tyres on the front than on the back even if the car is front-wheel drive.

Weird, but I don't know if that was true then or is still the case.

K3ogh_sti

and as long as they don't stick out from the arches it should be fine

alcazar

iTrader: (2)

But in an AWD car, it's a VERY good idea to have all four tyres the same size.

Leslie

Why in circles Pete,both tyres on that axle are the same size surely.

Les

Leslie

I should be surprised if the tester failed it. Let us know how it goes anyway.

Les