A bicycle rim includes a plurality of elongate slots each of which is
composed of a first diameter portion and a second diameter portion which
is smaller than the first diameter portion. A tube having threaded outer
periphery is inserted in each elongate slot and a core piece is inserted
through a passage in the tube. The tube has a flange engaged with an
inside of the rim and a cover member covering each elongate slot has a
threaded hole for being threadedly connected to the threaded outer
periphery of the tube. A protrusion extends from a side of the cover
member so as to be engaged with the first diameter portion while the tube
is shifted to the second diameter portion. A spoke is inserted in the core
piece and threadedly connected to a threaded inner periphery of the core
piece.
