| http://www.w3.org/ns/prov#value | - In motorcycles, as with cars and other vehicles, the terms parallel-twin, inline-twin, vertical-twin and "straight-two are used.[7] The term parallel-twin has been used to mean that the crankshaft is transverse across the frame, while inline-twin meant that the cylinders are arranged front to rear, in line with the direction of travel.[8] This special meaning for inline has been used
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