Real dogs will some day be old- and need somewhere to rest. Also I tend to put the dog in the trailer when riding trough traffic to avoid problems. We once had an accident where the dog cut his paw badly and needed a ride home.

Three yrs ago we did a two days 160 km ride with the dog. Can not be done with a regular family dog unless he can rest when needed. We often used the Dogbike2 http://www.bikeforums.net/showthread...-a-new-Dogbike I use the trailer more now since he need more help to get in and out of the dogbike bag as he is strapped in when riding there. Easyer to jump in and out of the trailer.

My "real dog" is old and with bad legs and is not going to survive this summer- so I think I`ll keep offering him a ride.