Since 1904 the Beta engineers have strived to provide innovative products that inspire, excite, and perform. 2015 is no different in that they continue to provide their customers with new models that continue to advance in both quality and features.EngineType: Beta-Built single cylinder, 4-valve, 4-stroke liquid cooled, electric start with back up kick starter and cooling fan kit.Bore: 100mmStroke: 60.8mmDisplacement: 478ccCompression Ratio: 12.1:1Ignition: DC-CDI with variable ignition timing, Kokusan.Spark Plug: NGK LKAR8A-9Lubrication: Twin oil pumps with cartridge oil filter. Separate oil for engine and clutch .8 liter eachCarburetor: Keihin FCR-39mmClutch: Wet multi-discPrimary Ratio: 31:73