A tow bar unit (fig.l) attaches to the Phil & Teds e3 buggy (fig.2)by means of a hitch (fig.3) and the bicycle frame by means of a clasp mechanism (fig.6). A similar concept exists but converts from a child carriage into a buggy. The invention solves a number of problems relating to the storage space required for two separate units, the cost of purchasing two said units and facilitates an ecologically friendly form of transport and leisure to be enjoyed by all the family. Ball joints allow adjustment of the unit to accommodate variations in bicycle design specification. The clasp mechanism can remain attached to the bicycle frame whilst the tow bar (fig.5) and hitch can be easily removed. This negates the need for timely and constant removal of the tow bar unit from the bicycle frame.