Dave the standard tyre size unless they have change it is 195/60HR15. The thing is that Morgan adjusts the width of the mudguards depending on what tyre width is ordered. The 195 is 10mm wider than the 185 fitted to the 4/4 2 Litre so will probably stick out a fraction, perhaps only a few mm, and be more likely to throw road grime, mud etc. outside the guards.

If you are worried about ground clearance you need to be careful too. A good site that allows you to do tyre comparisons is http://www.1010tires.com/Tools/Tire-Size-Calculator
but they no longer list the 185/70HR15. Attached is a pdf file of some information I obtained regarding changing my tyres to 195/65HR15.

Attached Images
Tyre Sizes.pdf (74.26 KB, 99 downloads)

Peter

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