Hello I’ve got a very nice adult ridden 600cc Ninja it’s the monster edition but I’ve removed the decals the green seat has a lumimoto carbon cover installed and can be removed it’s got 17,500 miles I’ve only used K&N oil filters and Kawasaki oil every season and I replaced the K&N air filter last year along with the front brakes,tires,battery,and the dreaded stator! The oil was just changed and I just flushed the coolant Exhaust is custom and ceramic powder coated and has baffles installed I do not recommend removing. It rides very nice there will be no test drives at all so please do not ask best I can do is ride it along side you if it’s a deal breaker. I do have the rear seat another brand new cowl for the rear and the rear sets for another rider,I also have other parts that I will throw in along with front and rear stands,oil drain pan and a bunch of other stuff that all comes with it. You can attach 2 helmets to the rear secure tabs under the cowl and it locks in for security.