An induction unit for a motorcycle

An induction unit (1) for a motorcycle comprises an induction box (4) containing air cleaning elements (15), and air intake ducts (2, 3), mounted between the front (11) of the motorcycle and the induction box (4) so as to channel air from the front (11) of the motorcycle to the induction box (4). The air intake ducts (2, 3) are connected with containers (5, 6) for auxiliary systems (7, 8), for example, the expansion container (6) for the coolant and the canister (5). The air cleaning elements (15) are preassembled on the air intake ducts (2, 3) so as to facilitate assembly and dissassembly and are prismatic in shape to optimise mounting space and filtering surface area.