The Roller coaster accessory allows to carry up to 3 children at the back of the bike. It encloses the children for a safe and fun journey.retrofit kit is proposed for gen1 frames. See the picture to identify whether your frame is gen1 or gen2. Heinzmann powered Bike43s are always Gen1, Shimano powered are always gen2, and Bafang powered can be either gen1 or gen2. New Bike43s are gen2.
The device is compatible with a rear seat in front position.