Adaptateur de porte-bidon de vélo ROCKBROS support de porte-bidon pour moto

Practical bike accessories Are you still worried about not having enough space or pre-drilling holes to install the water bottle cage? ROCKBROS bicycle water bottle cage adapter solves these problems, It can be installed on your bicycle handlebar, bicycle seat post, bicycle frame. The foldable mounting system is quick and easy. The bicycle bottle cage adapter is almost compatible with most bicycle and water bottle cages. Universal The holder can be rotated 90 degrees to suit the mounting position. Includes a bottle cage adapter with screws and an Allen key. This adapter for bicycle drink holders comes with 1 spacer and 1 rubber piece that allows you to adapt your bicycle holder with a diameter of 21 to 31.8 mm (0.83 to 1.25 inches).