My research on the construction of a scooter trailer has so far been sobering: from the DEKRA, from the TÜV unsatisfactory to no answers at all. Only the hint, which the clutch according to StVO, must have an ABE. Also brake light, indicator, sign m. lighting must be of course. Then the local police asked – also no new findings. Quotation: with the Fuffi with trailer is almost everything allowed, if no components stand out over the max. roller width. Quotation end. (slooowrider’s Saddle bags are therefore not allowed) The most important question for me to the community is: who has sound knowledge: unicycle or two-wheeler? Rigid attachment – or ball head ??? Rolli