2018 390RR RACING FAST AND SMOOTH, DO IT ALL! Find a Dealer Model TabsSpecs Engine Specs Type 4 Stroke - EFI Twin Injection Bore 88 mm Stroke 63,4 mm Displacement 385,6 cc Compression Ratio 12,48:1 Ignition Kokusan Spark Plug NGK LKAR 8 Lubrication 2 oil pumps Clutch wet multi-disc clutch Transmission 6 gears Chassis Specs Frame Molybdenum steel with double cradle split above the exhaust port Wheelbase 1490 mm Seat Height 940 mm Ground Clearance 320 mm Footrest Height 413 mm Dry Weight 109,0 kg ( Fuel Tank Capacity 8,0 l. Front Suspension Hydraulic USD closecartridge fork with ΓΈ48 mm shaft Rear Suspension Monoshock with progressive compound lever Media Starting My 2017 Beta RR390 Racing For The Very First Time Video of Starting My 2017 Beta RR390 Racing For The Very First Time