Is the Baby Jogger Summit X3 compatible with the Britax B-Safe Gen2?

Yes, with an adapter. Britax B-Safe fits Summit X3 via the Baby Jogger Britax car seat adapter.

DetailValue
StrollerBaby Jogger Summit X3
Car seatBritax B-Safe Gen2
VerdictYes, with an adapter
Adapter requiredBaby Jogger car seat adapter (Britax)
Check price: Baby Jogger Summit X3 Get the adapter: Baby Jogger car seat adapter (Britax) Check price: Britax B-Safe Gen2

FAQ

What adapter do I need to fit the Britax B-Safe Gen2 on the Baby Jogger Summit X3?

You need the Baby Jogger car seat adapter (Britax). Once fitted, the Britax B-Safe Gen2 clicks onto the Baby Jogger Summit X3 frame.

Is the Britax B-Safe Gen2 compatible with the Baby Jogger Summit X3?

Yes, with an adapter.

Other seats for this stroller

Other strollers for this seat

Source: Summit X3 compatibility guide (Strolleria). Verified 2026-08-21.