A method for manufacturing a rim for a motor vehicle; said rim comprising an outer channel which is suited to define a seat for receiving a tire and a central assembly, which comprises, in turn, a hub for the connection to a respective hub of an axle shaft of the motor vehicle and a number of peripherals spokes for the connection of the hub to the channel; the method comprises the steps of: manufacturing the central assembly, at least partially, performed by means of a press moulding process, known as SMC - Sheet Moulding Compounds and by using a carbon fiber material with short fibers, preferably carbon fibers having a length up to 25-50 mm, and a resin, preferably of the thermosetting type; manufacturing the outer channel; assembling the outer channel and the central assembly so as to obtain the rim; the method is characterized in that the step of manufacturing the outer channel comprises the sub-steps of - obtaining a preform of the channel by interlacing continuous carbon fibers by means of the Braiding or Filament Winding technique; - inserting the preform of the channel into a mould; and - injecting resin into the mould according to the Resin Transfer Moulding technique to complete the manufacturing of the channel made of composite material; and in that the step of assembling the outer channel and the central assembly so as to obtain the rim comprises the sub-steps of: inserting the central assembly together with the preform of the channel into the mould; and injecting resin into the mould according to the Resin Transfer Moulding technique so as to complete the manufacturing of the central assembly and of the channel. manufacturing the central assembly, at least partially, performed by means of a press moulding process, known as SMC - Sheet Moulding Compounds and by using a carbon fiber material with short fibers, preferably carbon fibers having a length up to 25-50 mm, and a resin, preferably of the thermosetting type; manufacturing the outer channel; assembling the outer channel and the central assembly so as to obtain the rim; the method is characterized in that the step of manufacturing the outer channel comprises the sub-steps of - obtaining a preform of the channel by interlacing continuous carbon fibers by means of the Braiding or Filament Winding technique; - inserting the preform of the channel into a mould; and - injecting resin into the mould according to the Resin Transfer Moulding technique to complete the manufacturing of the channel made of composite material; and in that the step of assembling the outer channel and the central assembly so as to obtain the rim comprises the sub-steps of: inserting the central assembly together with the preform of the channel into the mould; and injecting resin into the mould according to the Resin Transfer Moulding technique so as to complete the manufacturing of the central assembly and of the channel. - obtaining a preform of the channel by interlacing continuous carbon fibers by means of the Braiding or Filament Winding technique; - inserting the preform of the channel into a mould; and - injecting resin into the mould according to the Resin Transfer Moulding technique to complete the manufacturing of the channel made of composite material; and in that the step of assembling the outer channel and the central assembly so as to obtain the rim comprises the sub-steps of: inserting the central assembly together with the preform of the channel into the mould; and injecting resin into the mould according to the Resin Transfer Moulding technique so as to complete the manufacturing of the central assembly and of the channel. inserting the central assembly together with the preform of the channel into the mould; and injecting resin into the mould according to the Resin Transfer Moulding technique so as to complete the manufacturing of the central assembly and of the channel.