2009 BMW F 800 ST, Engine Type: Water cooled twin cylinder 4 stroke Displacement: 798 cc Bore X Stroke: 82 mm x 75. mm Horsepower: 85 bhp @ 8000 rpm Torque: 63 lb/ft @ 5800 rpm Valve Gear: DOHC, chain-driven with bucket tappets No of cylinders: 2 Compression Ratio: 12.0 :1 Engine Management: BMW Engine Controller - BMS K Valves per Cylinder: 4-Four Drivetrain Clutch: Multiple plate in oil bath ...