A roller clutch for a fishing reel capable of transmitting the rotation only in one direction, the roller clutch comprising: an outer ring having an inner circumferential surface, the inner circumferential surface including a cam surface formed from a tilted surface; an inner ring having an outer circumferential surface and being disposed on the inner circumferential side of the outer ring; multiple rollers disposed between the inner ring and the outer ring, and movable between a transmitting position and a non-transmitting position, the transmitting position is a position in which the roller is wedged between the cam surface of the outer ring and the outer circumferential surface of the inner ring, and a non-transmitting position is a position in which the roller is not wedged; multiple biasing members configured to bias the rollers to the transmitting position; a retainer having a roller holding space holding the roller, and a support section supporting the biasing member; a regulating part configured to regulate movement of a roller, in a situation where the roller resists the biasing force of the biasing member at a predetermined position; wherein the regulating part is formed as a part of the support section; wherein the support section has a housing portion housing a first end side of the biasing member and, a protrusion portion protruding toward the transmitting position in a circumferential direction, and the regulating part is formed by the protrusion portion, characterized in that, the support section has an inner circumferential side wall section and an outer circumferential side wall section demarcating the housing portion, and the protrusion portion is disposed at an end part on a transmitting position side of the outer circumferential side wall section. an outer ring having an inner circumferential surface, the inner circumferential surface including a cam surface formed from a tilted surface; an inner ring having an outer circumferential surface and being disposed on the inner circumferential side of the outer ring; multiple rollers disposed between the inner ring and the outer ring, and movable between a transmitting position and a non-transmitting position, the transmitting position is a position in which the roller is wedged between the cam surface of the outer ring and the outer circumferential surface of the inner ring, and a non-transmitting position is a position in which the roller is not wedged; multiple biasing members configured to bias the rollers to the transmitting position; a retainer having a roller holding space holding the roller, and a support section supporting the biasing member; a regulating part configured to regulate movement of a roller, in a situation where the roller resists the biasing force of the biasing member at a predetermined position; wherein the regulating part is formed as a part of the support section; wherein the support section has a housing portion housing a first end side of the biasing member and, a protrusion portion protruding toward the transmitting position in a circumferential direction, and the regulating part is formed by the protrusion portion, characterized in that, the support section has an inner circumferential side wall section and an outer circumferential side wall section demarcating the housing portion, and the protrusion portion is disposed at an end part on a transmitting position side of the outer circumferential side wall section.