Front fork

A front fork comprising:

• a pair of a first leg and a second leg, wherein
• the first leg internally has a stroke sensor section that detects a stroke amount of the front fork as a distance between extension and compression of the front fork,
• the second leg has a damping force variable device that controls a flow of a working fluid contained in the second leg to enable a damping force to be varied,
• the first leg further comprises:
• a tubular outer tube provided on an upper end side of the first leg;
• a tubular inner tube provided on a lower end side of the first leg and inserted into the outer tube, the inner tube being provided so as to be movable along a central axis of the outer tube;
• a spring collar fitted in the inner tube so as to be slidable;
• a cap provided at an upper end of the outer tube;
• a piston rod coupled to the spring collar at a lower end of the piston rod and attached to the cap at an upper end of the piston rod, the piston rod being surrounded by the stroke sensor section;
• and
• a spring provided so that an upper end thereof is in contact with a lower surface of the spring collar, and
• the stroke sensor section comprises:
• a coil portion;
• a tubular conductor member;
• and
• an output wire,
• the coil portion includes a coil conductor provided in an insulating member,
• the conductor member has a central axis common to a central axis of the piston rod and is provided in the inner tube,
• the conductor member is provided around an outer periphery of the piston rod so as to be movable along with the inner tube in a direction along the central axis,
• the coil portion is provided around an outer periphery of the conductor member so as to extend from the upper end toward the lower end of the piston rod, and
• the output wire is electrically connected to the coil conductor to output a signal based on an inductance of the coil conductor changing according to a length over which the coil portion and the conductor member overlap.