Second seats for a double stroller setup
Which second seat works with an existing stroller so two children can ride?
Match the seat to your stroller model first, since each seat below fits only the stroller named. BABY JOGGER City Select Second Seat Kit: The kit converts a City Select single stroller into a double stroller. The store says it is compatible only with Baby Jogger City Select strollers, not every Baby Jogger stroller. The second seat has a maximum child weight of 45 lb. Cybex Gazelle S 2nd Seat Unit: CYBEX lists this seat unit as compatible with the Gazelle S stroller. CYBEX says the seat unit is suitable from 3 months up to 50 lb, while the store says from 6 months, so the sources disagree; newborn use requires a separately sold cot or infant car seat. The seat-unit manual gives a maximum occupant weight of 22.7 kg (50 lb). Baby Jogger City Select 2 Second Seat Kit: The kit converts a city select 2 single stroller into a double stroller. The full-sized second seat holds a child up to 45 lb and has a 5-point harness. Bugaboo Kangaroo Sibling Seat: It is made for the Bugaboo Kangaroo stroller and adds a second seat for tandem use. The store recommends it from 6 months, with a maximum child weight of 40 lb (18 kg); it is not for newborns. Bugaboo Donkey 6 Sibling Seat: The sibling seat turns a Bugaboo Donkey 6 into a side-by-side double stroller for a second child. The store listing says the sibling seat is for children from 6 months up to 22 kg (50 lbs), while the Donkey 6 North American manual says the seat maximum is 23 kg (50 lbs); the sources disagree on the kilogram limit.
| Product | Why | Stroller fit | Age | Weight limit |
|---|---|---|---|---|
| 1. BABY JOGGER City Select Second Seat Kit sold by anbbaby.com | The kit converts a City Select single stroller into a double stroller. | The store says it is compatible only with Baby Jogger City Select strollers, not every Baby Jogger stroller. guide | The store lists the seat as suitable from newborn onward. guide | The second seat has a maximum child weight of 45 lb. guide |
| 2. Cybex Gazelle S 2nd Seat Unit sold by anbbaby.com | CYBEX lists this seat unit as compatible with the Gazelle S stroller. | CYBEX lists this seat unit as compatible with the Gazelle S stroller. guide | CYBEX says the seat unit is suitable from 3 months up to 50 lb, while the store says from 6 months, so the sources disagree; newborn use requires a separately sold cot or infant car seat. guide | The seat-unit manual gives a maximum occupant weight of 22.7 kg (50 lb). manual |
| 3. Baby Jogger City Select 2 Second Seat Kit sold by anbbaby.com | The kit converts a city select 2 single stroller into a double stroller. | The kit converts a city select 2 single stroller into a double stroller. guide | - | The full-sized second seat holds a child up to 45 lb and has a 5-point harness. guide |
| 4. Bugaboo Kangaroo Sibling Seat sold by anbbaby.com | It is made for the Bugaboo Kangaroo stroller and adds a second seat for tandem use. | It is made for the Bugaboo Kangaroo stroller and adds a second seat for tandem use. guide | The store recommends it from 6 months, with a maximum child weight of 40 lb (18 kg); it is not for newborns. guide | The store recommends it from 6 months, with a maximum child weight of 40 lb (18 kg); it is not for newborns. guide |
| 5. Bugaboo Donkey 6 Sibling Seat sold by albeebaby.com | The sibling seat turns a Bugaboo Donkey 6 into a side-by-side double stroller for a second child. | The sibling seat turns a Bugaboo Donkey 6 into a side-by-side double stroller for a second child. listing | The store listing says the sibling seat is for children from 6 months up to 22 kg (50 lbs), while the Donkey 6 North American manual says the seat maximum is 23 kg (50 lbs); the sources disagree on the kilogram limit. listing | The store listing says the sibling seat is for children from 6 months up to 22 kg (50 lbs), while the Donkey 6 North American manual says the seat maximum is 23 kg (50 lbs); the sources disagree on the kilogram limit. listing |
Also cited in the text
- BABY JOGGER City Select Second Seat Kit, Purpose: The kit converts a City Select single stroller into a double stroller. guide
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Written 2026-10-09T11:39:12.345Z.
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