onli happen at 4k rpm... i just maintain throttle at 4k rpm then got this jerky feeling.. the bike will go voom...voom...voom...voom...jerky loh.. haha hard to describe... dun tink its the clutch plates though cos other gear its ok and wyhen i open throttle the response was ok
bike shop said its the chain but i just felt its crap cos chain spoil y isit that bike onli jerk at 4krpm? weird rite...