SPECIFICATIONS Capacity: 55cc Configuration: 2 stroke single cylinder air cooled Carburetor: Walbro vacuum pump Ignition: RCEXL ignition system (CDI) Power supply: 4.8V – 6V battery pack Weight: 1,406g engine, 120g ignition, 92g muffler Maximum rpm: 9,000 RPM Idle rpm: Approx 1200-1300 RPM Gasoline/Petrol: Pre-mixed 87-91 Octane unleaded mixed with high quality 2 stroke synthetic oil Propeller selection Break-in: Vox 22x8 laminated wood After break-in: Vox 22x8, 22x10, 23x8, 23x10,24x8 laminated wood or Carbon VIDEOS Rev 55cc with Vox 23x8 Rev 55cc with Vox 22x8