600cc supersport bikes were once championed as the perfect bikes to tackle Britain's twisty, undulating back roads. But recent sales figures show a surprising lack of interest in the supersport market.
Japan also seems less than excited by the class, with most supersport bikes receiving nothing but cosmetic upgrades over the last few years - the Honda CBR600RR is essentially the same one that debuted in 2007 save for the addition of ABS.
To get the best out of them they generally have to be ridden hard, which isn't ideal with the ever increasing number of speed cameras and traffic police.
So what engine capacity would your ideal Japanese sports bikes be? Vote in the poll below, and don't forget to leave a comment.