I'm running 17" front and rear, larger rearwheel isn't an option because tyresize limits wheelchoice.

Most stunters I know use ally sprockets, not such a good idea when running between 250 and 300 HP at the wheel I don't think...

The tallest gearing that is available of the shelf gives the 199 at the limiter, and that is with the smallest front and rear combo for this bike.

Í'd have to look into some custom dragrace items I think...?

raising the revlimit isn't really an option, it's a high as it'll go on this spec

It's a 1206 cc oilcooled four, tough as nails but quite oldschool!