Kawasaki Ninja 300 (2012 - present) But it's from 8,000 rpm or so that the party begins. A mad, invite-only, teen house party.ManufacturerKawasakiAvailable from2012Big-bike tech bits, strong revvy engine, build qualityExpensiveThe 250 gains some muscle and goodies like a slipper clutchMPGpricepartsspecstop speedspecificationsbhphorsepowerexhaustkawasakininja