Chassis for stroller with two spaces comprising: - front legs (4) and rear legs (1) with the corresponding wheels (5, 2), - a handlebar (7) in a form of "U", - two supports (8, 9) coupled to different heights of each of the two sides of the chassis for releasable installation of the two seats (a, B), the upper support (8) being in an advanced position and bottom support being (9 ) in a backward arrangement, characterized in that - on each side the upper support (8) is coupled in an inclined forward in a core (N) which are hingedly coupled handlebar (7) arrangement, the front legs (4) and the rear legs (1), in that - both cores (N) are connected together by a transverse axis (10) and in that - the lower supports (9) are coupled in the post-bottom of the rear legs (1 ).
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