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? Can the DRYK DUO be coupled to any bike? From when can I use the DRYK DUO in bike trailer mode? How do I order a spare part?