The invention relates to a slot motorcycle. The invention includes a guide traveller provided with stabilising side extensions (9, 10), the ends of which are fitted with supporting means. The invention also includes a servomotor (12) solidly connected to the chassis and the wheels, having a horizontal axis of rotation (13) extending essentially longitudinally in relation to the direction of the movement of the motorcycle (1). The front end of the output shaft (14) of the servomotor includes a first slide (15) which moves along a vertical guide (16) solidly connected to the guide traveller (6). As such, when the motorcycle (1) is in the vertical position the rotation of the servomotor (12) causes the first slide to move downwards and the upper part of the chassis-wheel assembly to incline and, consequently, the motorcycle can be inclined towards the inside of a defined bend.