The invention relates to a foldable pushchair chassis, particularly a sport-model pushchair chassis, buggy chassis or similar vehicle chassis for children, comprising wheels and a push element (11) for pushing the pushchair chassis, wherein said pushchair chassis can be brought at least into a lockable usage state and into a folded, lockable storage state, and a, particularly manual, actuation device (16) is provided and configured such that during transfer from the locked usage state into the locked storage state, at least two locking procedures can occur, in particular both release of the locking in the usage state and adjustment of locking in the storage state, by means of a single first actuation of said actuation device (16).
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