The engine was used in the 2003 YZF-R6 once upon a time – so it has a slightly peculiar feeling of a willingness to rev, but it never seems to take off at the top end. The power curve is very flat which makes it unintimidating for new riders or on wet days. Response below 3000rpm is a bit fluffy, but above that it’ll drive cleanly in any gear, making overtaking easy. Not rocket ship fast, but it’s quick enough for this sort of bike.