This is the gear that turns a cargo bike into the family car: seats, benches, harnesses, and the safety hardware that holds small passengers in place. Seating from Larry vs Harry runs from a fold-down single seat to a twin bench and a complete family pack with canopy and board; multi-seat plywood boxes from Badger Bikes carry two or three children in one unit; safety parts like five-point harnesses, safety belts, and YHWHY's ISOFIX adapter (which mounts a standard car child seat) lock everything down. Cushions from Studio Vollebak pad the ride.
Prices run from around 50 EUR for a belt to 1,600 EUR for a full family setup, so you can build up seat by seat. Check every seat and harness is rated and cut for your exact platform, since child safety hardware is never universal.
New to all this? Start with getting started. Want a canopy over the kids? See covers and weather. Need the box they sit in? Start with hard boxes.
