Using this bar you can attach nearly every childs bike on an adult one this means that there is no more waiting for the slow ones the tandem bar can also be used to help to learn to ride the bar is easy to mount and no tools are required quick adapter sturdy construction can be used on childs bicycles sized 12 20 can take a childs weight of up to 32 kg the child can peddal or freewheel the childs handlebars are stabilised when the bar is in plac