[newtoenduro]

I just got my new hawk 250 and am having gearing problems I believe it is the sprockets. My bike only does 50 in 50th gear when they claim to to 60+ and seems like it's fighting for fuel when it is going 50 any help would be greatly appreciated thinking about getting new sprockets and wanted to know what size I should get I ride mostly on pavement and need more top end! Thanks in advance!!!