125/70/16 spare, cannot be right?

[gonzo]

I know there are a lot of threads on this, but none seem to cover my specific question.
(Or at least, I'm not practiced enough to find it...)

Looking for a space saver spare for a 2025 ZS SE EV.
The car came with 215/55/17 tyres.

All over the internet there seems to be conflicting info. But most seem to suggest that a 16" spare is fine and can be used in place of all 16/17/8" rims. And the most common tyre fitment seems to be 125/70/16.
So that's what I ended up with. But it seems awful small! 15% too small.

Surely this can't be right.
And even if it were a 125/90/16 it would still be almost 6% out.

What do MG supply ??

 

[Daver]

Hi
I purchased my space saver spare wheel kit through this forum, from someone who got it from their MG main dealer but subsequently sold the car. It was a facelift ZS EV Trophy, like mine. It is 125/90/16 which matched many being sold online. I've never had to use it and hopefully never will but it's reassuring to have it in the boot!

 

[gonzo]

Thanks for the info.
Looks like I need to get a more appropriate sized one.