Michelin "compact" 145-60 R13 tyres

[leew]

Just wondering if anyone has experience of using Michelin "compact" 145-60 R13 tyres?
I am considering using them on a self-built lightweight 3 wheeler. I notice they are "C" energy rated. I cannot seem to find anything higher rated in a small size.
I am considering mounting them on some Imagewheels rims but was wondering what kind of width rim, relative to the tyre is best for MPG.

Many thanks, lee.

[rmay635703]

No help here but too bad they don't sell them in the US, they would fit the rear of my 1981 Comutacar quite well.

Ah well.