Sliding motorcycle tailstock

The utility model provides a sliding motorcycle tailstock which comprises a connecting frame and a support in sliding fit with the connecting frame, the support is composed of a bent part and a vertical part, a rubber ball is arranged on the end face, away from the bent part of the support, of the vertical part of the support, and two welding rods are connected to the bent part of the support. A square cavity with an opening facing the connecting frame is formed in each welding rod, and a dust removal assembly is arranged in each square cavity. According to the sliding tailstock, due to the arrangement of the piston rod and the one-way valve, the tailstock can blow air to the surface and remove dust in the contraction process to guarantee smooth contraction of the tailstock, the end face of the support is connected with the rubber ball, the support is buffered and protected, and the problem that the pipe wall deforms due to collision between the support and the connecting frame is solved. 本实用新型提供一种滑动摩托车尾架，包括连