Tern Captain’s Chair™

  • Description
  • Additional information
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The Tern Captain’s Chair lets older kids and adults ride on the back of a GSD or HSD in comfort and style. The extra-thick seatpad and comfy backrest provide cushioning and support, while the extended side rails offer protection against minor bumps. Pair with the Sidekick Joyride Bars to create a complete passenger’s cabin (available separately). This setup also offers space for crates and boxes—just remove the seat cushion.

  • Compatible Bikes
    HSD, GSD
  • Compatible Items
    Sidekick Joyride Bars, Sidekick Bars


  • Designed to fit one big kid on the HSD
  • Designed to fit one adult passenger or two kids on the GSD
  • Offers space for crates and boxes, when paired with the Sidekick Joyride Bars
  • Includes two bottle-mounts for water bottles, coffee mugs, and locks
  • Designed with extended side rails for added protection
  • Includes extra-thick seat-cushion and reclined backrest, for a comfortable ride
  • Backrest pad includes reflective accents for night-time visibility
  • Allows vertical parking of bike while installed
  • Dimensions 533 x 565 x 257 mm


Fitment and Use Details:

How many passengers can be carried on the Captain’s Chair?
Only one passenger can properly occupy the seat and lean his/her back on the backrest of the Captain’s Chair.
On the HSD, the Captain’s Chair fits one big child.
  • Minimum recommended age: 8; Minimum recommended height: 130 cm.
  • Recommended stoker bar: Sidekick Joyride Bars
On the GSD, the Captain’s Chair fits one older kid or one adult.
  • Minimum recommended age: 10; Minimum recommended height: 140 cm.
  • Recommended stoker bar: Sidekick Joyride Bars (child) or Sidekick Bars (adult)
What if I has two children? Can they still use the Captain’s Chair?
For families with two passengers, our recommended GSD setups are:
  •  2 children aged 5-10: Clubhouse
  •  1 young child + 1 older aged 10 or above: 1 Yepp seat in the rear, 1 Sidekick Seat Pad, Sidekick Joyride Bars
What’s the maximum passenger weight on the Captain’s Chair?
Great question! The answer is: It depends on the bike.
  •  On the HSD, the rear rack has a load limit of 60 kg. This means everything including passenger, the Captain’s Chair, and any cargo or accessories attached to the rear rack must stay under that limit of 60 kg. The bike’s max gross vehicle weight of 170 kg still applies.
  •  On the GSD, the rear rack is part of the frame. The bike’s max gross vehicle weight of 200 kg still applies.
Does that mean the Captain’s Chair on the GSD cannot fit two kids?
To be clear, the GSD rack fits up to two children, but only one child can properly occupy the seat and lean his/her back on the backrest of the Captain’s Chair.
When carrying children, adult riders are advised to determine the most appropriate passenger setup based on their own judgement of the childrens ability to act responsibly, and in accordance with local regulations. However, our general recommendation remains the same: the Captain’s Chair was designed to fit one passenger.


Please note: other accessories shown in these images such as footpegs, wheel guards, handlebars and crates are not included and can be purchased separately. Shown here for illustrative purposes only.

Additional information




533 x 565 x 257 mm


2.3 kg

Load Capacity

See description

Volume Capacity


Compatible Bikes


Compatible Items

Sidekick Bars, Sidekick GSD Wheel Guard, Sidekick HSD Wheel Guard, Sidekick Joyride Bars




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