BMW’s own-brand roof bars have a wider t-track than most standard aluminium roof bars, so compatibility with bike carriers can vary.
Atera Giro AF+: Both come with fittings suitable for BMW’s wider roof bars.
Thule ProRide 591 and 598: Require the Thule 889-1 adapters.
Thule FreeRide 532 and TopRide 568: Require the Thule 889-3 adapters.
Yakima bike carriers: Generally come with fittings that accommodate wider bars, so they are also compatible with BMW roof bars.
Always check the specific carrier and roof-bar combination before purchasing to ensure the fittings are compatible.