IN A SPINNING REEL, A TRAVERSE CAMSHAFT (21) IS ARRANGED TO ENGAGE WITH AN ENGAGING MEMBER USED TO CAUSE A BAIL ARM AND A SPOOL TO UNDERGO A RELATIVE RECIPROCAL MOVEMENT. THE TRAVERSE CAMSHAFT (21) HAS A SHAFT BODY (37) AND A CAM GROOVE (38). THE SHAFT BODY (37) IS ARRANGED TO ROTATE IN COORDINATION WITH ROTATION OF A HANDLE ASSEMBLY IN AT LEAST A LINE REEL-IN DIRECTION. THE CAM GROOVE (38) IS FORMED IN AN EXTERNAL CIRCUMFERENTIAL SURFACE OF THE SHAFT BODY (37) AND CONFIGURED TO ENGAGE WITH THE ENGAGING MEMBER. THE CAM GROOVE (38) IS ALSO CONFIGURED TO INTERSECT ITSELF. THE CAM GROOVE (38) HAS A FIRST GROOVE SECTIONS (38B) ARRANGED ROTATIONALLY DOWNSTREAM FROM AN INTERSECTING PORTION (38A) AND A SECOND GROOVE SECTIONS (38C) THAT IS WIDER THAN THE FIRST GROOVE SECTIONS (38B) AND ARRANGED ROTATIONALLY UPSTREAM FROM AN INTERSECTING PORTION (38A). FIGURE 5
