A crankshaft comprising a plurality of main journal bearing surfaces (102), a plurality of connector rod bearing surfaces (104), and at least one oil feed passageway (110) internal to the crankshaft, each of the at least one oil feed passageways (110) communicating with an inlet (122) and a plurality of outlets (124) located within bearing surfaces (102, 104), and wherein the inlet (122) is located within a first main journal bearing surface, and at least one of the outlets (124) is located within a further main journal bearing surface, and an engine and a vehicle comprising such a crankshaft.