Transport carrier for a children's mountain bike (26 ") to little things, such as a sports bag,: Purpose. This application complies with the porter well. He is of course not as stable and rigid as a metal carrier or expensive carrier, but you can not expect for this price as well. The rubber system is ok, reflectors provides additional security and at the bottom even hiding a small air pump. A star deduction is available for the little fiddly assembly, especially since the supplied sleeves have not helped. I had to work to fix with duct tape on the seat tube, to produce the desired strength.