Patent ID: 7516969

Claim:
A front suspension fork comprising: a crown with two legs connected thereto and each leg having an outer tube and an inner tube which is movably inserted into the outer tube, a top of the inner tube connected to the crown; an adjustable device connected to at least one of the two inner tubes and having a rotatable cap, a connection member connected to the inner tube and a rotatable member; a movable member connected to a lower end of the rotatable member and being co-rotated with the rotatable member; a pneumatic cylinder having a pre-set pressure and connected to the movable member by a connection tube, the pneumatic cylinder moved up and down by rotation of the movable member; a connection part pivotably connected to a lower end of the pneumatic cylinder and an outer periphery of the connection part movably connected to the inner tube, whereby the inner tube is movable relative to the connection part and pneumatic cylinder; and a rod connected to a lower end of the outer tube and inserted into the inner tube, the rod extending through the connection part, the inner tube movable along the rod by the movement of the connection part in the inner tube.