01-06-2014, 08:34 AM
I would wait until they are two to start training them to pull a light cart or wagon. Chances are, until they are two years old the harness will be too big anyway (Cuzco's was). You can start adding weight as they grow through their second year, but I would not ask them to pull an adult until they are three and good-sized. Even when they are three, be careful not to overdo it... they will not stop growing until they are four.