Seat positioning system for a wheelchair

A seat positioning system comprising:

• a first frame member;
• a second frame member;
• a first linkage member coupled to the first frame member and coupled to the second frame member, the first linkage member being slidable relative to the first frame member;
• a second linkage member coupled to the first frame member and coupled to the second frame member, the second linkage member being slidable relative to the first frame member;
• a first lock having a first unlocked configuration in which the first linkage member is free to slide relative to the first frame member and a first locked configuration in which the first linkage member is prevented from sliding relative to the first frame member;
• a second lock having a second unlocked configuration in which the second linkage member is free to slide relative to the first frame member and a second locked configuration in which the second linkage member is prevented from sliding relative to the first frame member;
• and
• an actuator having a first end pivotally connected to the first frame member and a second end pivotally connected to the second frame member, the actuator configured to transition between an extended state and a retracted state to move the first frame member relative to the second frame member,
• wherein the second frame member is configured to slide in a forward substantially horizontal direction relative to the first frame member when the first lock is in the first unlocked configuration and the second lock is in the second unlocked configuration.