What is the weight limit of the JIVE² Second Seat? Redsbaby September 12, 2019 04:28 Updated Follow The JIVE² Second Seat can hold up to 17kg (37.5 lbs). Related articles Up to what age will my child fit into the JIVE² Second Seat? What are the JIVE² Tandem dimensions? Comments 0 comments Article is closed for comments.