The invention concerns a trailer (21) for a two-wheeler comprising means for being secured (22) on the vehicle, said securing means (22) are arranged in the form of a clamp with two arms (24) whereof the front ends (25) are designed to co-operate with the ends (26) of the rotation shaft of the vehicle rear wheel (23), and said trailer comprises means for clamping (28) said arms (24) adapted to maintain the front ends (25) of said arms (24) engaged with the ends (26) of the rotation shaft of the two-wheeler rear wheel (23).