I am looking to upgrade from the 600rr to either a 54 or 1k.. I do all kinds of riding I like to race down curvey country roads somtimes and somtimes take off and be gone for a couple of days and hit a wheelie or 2 here and there.. I don't really know wich to go with? What would you suggest? What are the main differences? Any feedback would help please

Personally Ill always take the larger displacement as long as weight dosent become an issue.