Wheelchair comprising: • a support frame with a seat to receive a person, • at least two wheels (21, 22), • means for mounting said two wheels (21, 22) rotatably with respect to the frame respectively in two substantially parallel planes, • an energy source, • two electric motors (23, 24) controllable from respective control inputs (25, 26) connected to said energy source, said two electric motors being coupled respectively to the two wheels (21, 22) to rotate them and being capable of being controlled in two directions of rotation, • two reversers (41, 42), each reverser having two connection positions and comprising a first reverser part and a second reverser part movable with respect to each other, the two reversers (41, 42) being interposed in series between said energy source and respectively the respective control inputs (25, 26) of the two electric motors (23, 24), one of the two reverser parts comprising two contact poles (43, 44) and the other reverser part comprising a lever constituted of an elastic strip, the two said reverser parts being capable of being controlled in movement against each other such that the level, starting from a rest position, can come into contact with one or other of the two poles (43, 44), • means for securely mounting the first reverser part of each reverser on said frame, and • means for controlling the movement of the second reverser part of each reverser (41, 42) with respect to the first reverser part so as to bring said lever into contact with one or other of the two poles (43, 44) according to the direction of rotation which is desired for said two motors (23, 24), said means for controlling the movement of the second reverser part of each reverser (41, 42) with respect to the first part comprising a tube, means for fixing this second reverser part of each reverser (41, 42) to the tube and means for mounting this tube in movement with respect to the first reverser part of each reverser, the means for fixing a first end of each strip onto the tube such that the second end of the strip is located, in the rest position, between the two poles (43, 44) and without contact with them comprising a sleeve slidingly mounted substantially congruent to the inside of the tube, said sleeve comprising a slot wherein is fixed the first end of the strip, characterised by the fact that said tube is arranged such that its two ends surround in free movement, at least partially, the first reverser part of each reverser (41, 42). • a support frame with a seat to receive a person, • at least two wheels (21, 22), • means for mounting said two wheels (21, 22) rotatably with respect to the frame respectively in two substantially parallel planes, • an energy source, • two electric motors (23, 24) controllable from respective control inputs (25, 26) connected to said energy source, said two electric motors being coupled respectively to the two wheels (21, 22) to rotate them and being capable of being controlled in two directions of rotation, • two reversers (41, 42), each reverser having two connection positions and comprising a first reverser part and a second reverser part movable with respect to each other, the two reversers (41, 42) being interposed in series between said energy source and respectively the respective control inputs (25, 26) of the two electric motors (23, 24), one of the two reverser parts comprising two contact poles (43, 44) and the other reverser part comprising a lever constituted of an elastic strip, the two said reverser parts being capable of being controlled in movement against each other such that the level, starting from a rest position, can come into contact with one or other of the two poles (43, 44), • means for securely mounting the first reverser part of each reverser on said frame, and • means for controlling the movement of the second reverser part of each reverser (41, 42) with respect to the first reverser part so as to bring said lever into contact with one or other of the two poles (43, 44) according to the direction of rotation which is desired for said two motors (23, 24), said means for controlling the movement of the second reverser part of each reverser (41, 42) with respect to the first part comprising a tube, means for fixing this second reverser part of each reverser (41, 42) to the tube and means for mounting this tube in movement with respect to the first reverser part of each reverser, the means for fixing a first end of each strip onto the tube such that the second end of the strip is located, in the rest position, between the two poles (43, 44) and without contact with them comprising a sleeve slidingly mounted substantially congruent to the inside of the tube, said sleeve comprising a slot wherein is fixed the first end of the strip, characterised by the fact that said tube is arranged such that its two ends surround in free movement, at least partially, the first reverser part of each reverser (41, 42).