Maximum child weight for stroller second seats and seat packs
What is the maximum child weight for a stroller second seat or seat pack?
Cybex Gazelle S 2nd Seat Unit: The seat-unit manual gives a maximum occupant weight of 22.7 kg (50 lb). Bugaboo Donkey 6 Sibling Seat: 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. Stokke YOYO 6+ Color Pack (YOYO³ 6+): The US guide gives the 6+ limit as 48.5 lbs / 22 kg in weight, or 40 in / 102 cm in height. Cybex Gazelle S Seat Unit: The US manual prints configuration limits of 35 lbs/15.9 kg and 50 lbs/22.7 kg; the global manual prints 15 kg and 22 kg, so the regional figures disagree. Cybex Gazelle S Second Seat: The manual’s weight-limit page shows max. 35 lbs/15.9 kg and max. 50 lbs/22.7 kg. UPPAbaby-dc RumbleSeat V3: The store listing says the RumbleSeat V3 has a 40 lb / 18.1 kg child weight limit, but the maker's manual gives a lower limit of 15.9 kg (35 lb); the sources disagree. UPPAbaby RumbleSeat V3: The store listing states a 40 lb/18.1 kg weight limit for the RumbleSeat V3, while the maker's manual states a maximum of 15.9 kg (35 lbs); the sources disagree. Bugaboo Kangaroo Sibling Seat: The store recommends it from 6 months, with a maximum child weight of 40 lb (18 kg); it is not for newborns. Cybex Priam 4 / e-PRIAM Seat Pack: CYBEX’s Australian page gives a maximum child weight of 22 kg in either seating direction; the store page says up to 55 lb, so the sources disagree.
| Product | Why | Weight limit | Age start | Compatibility |
|---|---|---|---|---|
| 1. Cybex Gazelle S 2nd Seat Unit sold by anbbaby.com | The seat-unit manual gives a maximum occupant weight of 22.7 kg (50 lb). | The seat-unit manual gives a maximum occupant weight of 22.7 kg (50 lb). manual | 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 | CYBEX lists this seat unit as compatible with the Gazelle S stroller. guide |
| 2. Bugaboo Donkey 6 Sibling Seat sold by albeebaby.com | 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. | 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 sibling seat turns a Bugaboo Donkey 6 into a side-by-side double stroller for a second child. listing |
| 3. Stokke YOYO 6+ Color Pack (YOYO³ 6+) sold by albeebaby.com | The US guide gives the 6+ limit as 48.5 lbs / 22 kg in weight, or 40 in / 102 cm in height. | The US guide gives the 6+ limit as 48.5 lbs / 22 kg in weight, or 40 in / 102 cm in height. manual | The YOYO³ 6+ seat unit is for children from 6 months and up to 4 years old, or a maximum weight of 22 kg, whichever comes first. manual | The pack is compatible with all YOYO frames, including YOYO³, YOYO², YOYO+ and the original YOYO, which are sold separately. listing |
| 4. Cybex Gazelle S Seat Unit sold by albeebaby.com | The US manual prints configuration limits of 35 lbs/15.9 kg and 50 lbs/22.7 kg; the global manual prints 15 kg and 22 kg, so the regional figures disagree. | The US manual prints configuration limits of 35 lbs/15.9 kg and 50 lbs/22.7 kg; the global manual prints 15 kg and 22 kg, so the regional figures disagree. manual | The maker's UK page says from birth to approximately 4 years; the store says from 6 months, so the sources disagree on minimum age. guide | The second seat converts the Gazelle S from a single to a double stroller so two children can ride at once. listing |
| 5. Cybex Gazelle S Second Seat sold by albeebaby.com | The manual’s weight-limit page shows max. 35 lbs/15.9 kg and max. 50 lbs/22.7 kg. | The manual’s weight-limit page shows max. 35 lbs/15.9 kg and max. 50 lbs/22.7 kg. manual | The maker states the age range is from birth to approximately 4 years. guide | The second seat converts the Gazelle S from a single to a double stroller without additional adapters. listing |
| 6. UPPAbaby-dc RumbleSeat V3 sold by albeebaby.com | The store listing says the RumbleSeat V3 has a 40 lb / 18.1 kg child weight limit, but the maker's manual gives a lower limit of 15.9 kg (35 lb); the sources disagree. | The store listing says the RumbleSeat V3 has a 40 lb / 18.1 kg child weight limit, but the maker's manual gives a lower limit of 15.9 kg (35 lb); the sources disagree. listing | The manual says the RumbleSeat is suitable from 6 months and designed for a child up to 15.9 kg (35 lb) and 91.4 cm (36 inches), a lower weight limit than the store listing's 40 lb (18.1 kg); the sources disagree. manual | It fits every Vista from 2015 on, including Vista V2 and V3, and goes straight onto a V2. guide |
| 7. UPPAbaby RumbleSeat V3 sold by albeebaby.com | The store listing states a 40 lb/18.1 kg weight limit for the RumbleSeat V3, while the maker's manual states a maximum of 15.9 kg (35 lbs); the sources disagree. | The store listing states a 40 lb/18.1 kg weight limit for the RumbleSeat V3, while the maker's manual states a maximum of 15.9 kg (35 lbs); the sources disagree. listing | - | The Rumble Seat is for use with the UPPAbaby VISTA stroller only. manual |
| 8. Bugaboo Kangaroo Sibling Seat sold by anbbaby.com | The store recommends it from 6 months, with a maximum child weight of 40 lb (18 kg); it is not for newborns. | 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 | It is made for the Bugaboo Kangaroo stroller and adds a second seat for tandem use. guide |
| 9. Cybex Priam 4 / e-PRIAM Seat Pack sold by anbbaby.com | CYBEX’s Australian page gives a maximum child weight of 22 kg in either seating direction; the store page says up to 55 lb, so the sources disagree. | CYBEX’s Australian page gives a maximum child weight of 22 kg in either seating direction; the store page says up to 55 lb, so the sources disagree. guide | CYBEX’s Australian page specifies use from birth to approximately four years, while the store page says the Seat Pack is ready once the baby can sit upright, so the sources disagree on when use may begin. guide | It is designed for the CYBEX Priam 4 and e-PRIAM stroller frames, which are sold separately. guide |
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Written 2026-10-20T06:42:41.956Z.
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