Flat-twin engine
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A flat-twin engine is a two-cylinder internal combustion engine with the cylinders on opposite sides of the crankshaft. The most common type of flat-twin engine is the boxer-twin engine, where both pi
Douglas 80 Plus motorcycle engine (circa 1950)
Citroën 2CV engine (viewed from rear)
1912 Douglas N3 engine
1942 Harley-Davidson XA engine
BMW Motorrad
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BMW Motorrad is the motorcycle brand and division of German automotive manufacturer, BMW. It has produced motorcycles since 1923, and achieved record sales for the fifth year in succession in 2015. Wi
Flat-twin engine
…it this case the power was transmitted to the rear wheel via a shaft drive. Over time, longitudinal mounting became more common for flat-twin engines. BMW has a long history of flat-twin engine motorcycles, as do Ural (Russia) and Dnepr (Ukraine). In 1902, the Pearse monoplane (which would later become…
BMW's first motorcycle, the R32
BMW's best selling motorcycle, the R1200GS
BMW K1200S
2014 BMW S1000R