Tyre width query

[ganesh]

Howdy folks,

I had a puncture t'other week in one of my front tyres, so i shoved the spare on which happens to be a 185 width, whereas my standard tyres are 165. Is this illegal? I know it's not ideal, but the specific tyre i need to replace it with isn't in stock anywhere, and won't be for a week or two.

Thanks.

 

[ganesh]

No one knows the answer then? The most relevant information i can find isn't especially helpful

Tyre Mixing

Must NOT have radial tyres on the front wheels and cross ply tyres on the rear wheels, it is also illegal to have a cross ply tyre on one side with a radial on the other.

All steerable axles must be fitted with tyres of the same construction, as must all driven axles that are not steerable.

Nothing about different sizes, and as it's only a 20mm difference in width i would have thought it would be ok.

 

[Defcon5]

Technically it is illegal IIRC, however the chances of being given points are minimal I would think

 

[Slime101]

Its fine, its only a spare. Think about a space saver compared to a normal tyre....

The only problem is for an MOT, they need to be matching size but for everyday use its ok.