Track and drive sprockets for a tracked vehicle

A sprocket wheel and drive track assembly of a tracked vehicle, the assembly comprising:

• a belt having an inner side and an outer side, the belt having a longitudinal direction and a lateral direction;
• at least one drive sprocket in contact with the belt, the at least one drive sprocket having a sprocket wheel and a plurality of internal teeth extending laterally therefrom, the plurality of internal teeth being distributed on a periphery of at least one side of the at least one drive sprocket, the plurality of internal teeth being disposed at a sprocket pitch from each other;
• a plurality of external lugs distributed on the outer side of the belt, the external lugs being adapted to be in contact with a ground, the plurality of external lugs being disposed so as to form a plurality of lateral rows, the plurality of lateral rows being disposed at a first pitch from each other;
• a plurality of internal lugs distributed on the inner side of the belt, the internal lugs being adapted to be engaged by at least two of the plurality of internal teeth of the at least one drive sprocket, the plurality of internal lugs being disposed to form at least one longitudinal row, at least two consecutive internal lugs of the plurality of internal lugs being disposed at a second pitch from each other, the second pitch being compatible with the sprocket pitch of the at least one drive sprocket for contacting two consecutive internal lugs of the belt with corresponding two consecutive internal teeth of the at least one drive sprocket, the second pitch being half of the first pitch.