The Tern Captain’s Chair lets big kids and adults ride on the back of your bike in comfort and style. Complete the setup with the Sidekick Joyride Bars for your passenger, and removing the seat cushion lets you store crates with the same setup. The Tern Captain’s Chair is designed to fit one older child (55+ lbs and approx. 50 inches tall) on the Tern HSD, Quick Haul, or 1-2 older children on the Tern GSD.