A rotation transmission mechanism 29 of a spinning reel including an intermediate gear 30 that transmits the rotation of a handle to a meshing driven gear 24 of a reciprocating mechanism. Biasing member 34 biases the intermediate gear in an axial direction with respect to the shaft member 33 which rotatably supports the intermediate gear 30. This reduces axial wobbling of the gears. The intermediate gear 30 may a single member, or may be first 31 and second 32 intermediate gears which are rotatable coupled to each other with the biasing member in between. The first or second gears may be a helical gear, and the gears may have different shaped teeth. The biasing member may be a coned-disc spring or a curved washer.
