A fly-fishing reel comprising a stationary housing mounted on a fishing rod and a rotatable spool having a clicker gear engaged by a pivoted pawl which can apply resistance to the rotation of the spool with the aid of a pair of spring devices. A single knob on the exterior of the housing is provided with a connection with an adjustment device having two eccentric pins in contact connection with the spring devices. Rotating or moving the knob changes the relative positions of the spring devices with respect to the pawl, thus changing the resistance exerted on the spool and allowing fishermen to more easily sense the movement of a hooked fish.