D4KGP wrote:

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.

OK.  Here is a straightforward answer to your question.

My 2004 MG TF has Sport Pack 2 which means that it has ABS, 4 Pot red brakes and 16" 11-spoke wheels.  It has the offset sizes: 195/45/16 on the front and 205/40/16 on the back. 

The spare, as standard, is a 14" steel wheel with some weird size tyre that brings the total diameter to the same as the other wheels.  The problem, as Airportable says, is that if you get a puncture on the front you have to fit a back wheel to the front before fitting the spare to the back.  So I ditched the space-saver wheel!

The good news is that since you have no spare wheel you can forget all about the space-saver wheel and seek out a 16" 11-spoke wheel with either a 205/40/16 or 195/45/16 tyre.

I can vouch for the fact that a 16" 11-spoke wheel with a 205/40/16 tyre fits just fine into the spare wheel slot in the front.  This is what you need!

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