been very pleased with them so far, slightly wider front tyre but fit fine.
Aparently when measuring the standard fit A048 they are 197mm (not 195mm) and when measuring the R1Rs they are 202mm (not 205mm). Or similar. So it works out only 5mm diference in tyre size.
Purchased from here, highly recomended
http://www.seriouslylotus.com/index.php/wheels-and-tyres/tyres.html