Switching 265/40 R18 to 255/40 R18

[jake987C]

I have to plead ignorance and ask for help here. My current tyres are 265/40 R18 on the rear, but I'd like to change to 255/40 R18 to put winter tyres on (far more choice of tyre available).

If I buy another set of 18in alloys for the rear with the 255 tyres on, what changes if any need to be made when swapping these in for the 265/40 R18s? They are a fractionally narrower width, so do I need spacers? Does this depend on the length of the wheel bolt used?

Thanks in advance!

[Trev450]

No you don't need spacers. I use 265/35/19 summer tyres and 255/40/18 winters without any issues.

[jake987C]

Trev450 said:

No you don't need spacers. I use 265/35/19 summer tyres and 255/40/18 winters without any issues.

OK, thanks. So the wheel bolts don't need to be fractionally shorter?

[Trev450]

No because the wheels are the same size. Its only the tyres that are fractionally smaller.