Can you fold YOYO with the rolling base of YOYO bag attached? Yes, YOYO folds and unfolds with the rolling base and the hooks in place. Other items that may interest you Is YOYO bag compatible with all YOYO strollers? How is YOYO bag installed? Do you have to use the rolling base to support the weight of the bag? Is YOYO bag washable? What is the capacity of YOYO bag?