TF spare wheel tyre size.

Looking to change from sealant and pump to a spare wheel,  so my question is what size tyre would be required for it to be used on all wheels
I understand it would also have to be a multidirectional tyre.  (16 inch wheel)  Thanks  Glyn.

Just for completeness, here are all the tyres on my 2005 TF:

Front - 185/55R15
Rear - 205/50R15
Spare - 175/65R14

It depends on which brake callipers you have, if you are running standard callipers then those figures are correct, if you have four pots then you have to hope that your puncture is on the rear tyres.
It is possible if you are running four pots & have a front puncture to take a wheel off the rear & transfer it to the front, that would allow you to use the standard spare on the vacant rear.
This is not something I would wish to do on a high volume road.
M