Thanks Junkie; It all makes perfect sense but also poses the question... Do American made bikes have a different compression ratio to Japanese made bikes? Mine is a Jap bike (E4) and I would assume that Missing Link's Bike is also a Jap manufacture. In any event I'm going to drop it down to a tank full of 93 and see what happens. Probably nothing but I'll let you all know,
as Rob said, we measure octane differently. It's something like a 5 octane difference for the same fuel. Of course that isn't an exact number...
you should be fine with a tank of 93