On which side has my child to sit when using the DRYK DUO as a single? In order to better distribute the weight, your child has to sit on the right side forward-facing. Related articles Are there any rules on how my children should sit when using the DRYK DUO as a double? How fast can I ride with the DRYK DUO? From when can I use the DRYK DUO in bike trailer mode? Can the DRYK DUO be coupled to any bike? Can my child keep the winter jacket on while sitting in their car seat?