Abstract: A bicycle seat bag comprises a tapered unitary body formed of a substantially rigid polymeric material and having a smaller forward end and a larger rearward end, an opening at the rearward end of the body, and a unitary cap member formed of a substantially rigid polymeric material detachably connected to the body at the opening. A cleat member attached to the top of the body has a pair of slots opening outwardly in opposite directions that receive the frame bars of a bicycle seat to removably attach the body to the seat. A generally C-shaped clip member attached to the forward end of the body and having a pair of resilient legs defining an opening that faces laterally is received on and resiliently engaged with a bicycle seat post with one leg in front of and the other leg in back of the seat post so as to attach the body to the seat post against forward, backward and rotational movements.

Abstract: A lighted bicycle carrier bag comprises a bag body of flexible sheet material defining an enclosed space and suitable elements for attaching the body to a portion of a bicycle. An electroluminescent light source in the form of a strip is attached to the exterior of the body in a position such that it is visible to an observer from a multiplicity of aspects including both sides and either the rear or the front when the carrier bag is mounted on the bicycle A source of electrical power adapted to energize the light source is attached to a component of the carrier bag within the enclosed space and is connected by electrical conductors such as to form a circuit between the power source and the light source. A switch is interposed in the electrical circuit to selectively open and close the circuit.

Abstract: A hitch for attaching a trailer to a bicycle comprises a mounting bracket adapted to be releasably attached to a chain stay of the bicycle frame and a resiliently flexible coupling member of an elastomeric material attached to the mounting bracket and adapted to be attached to a boom tube that is in turn attached to the trailer. The coupling member provides universal articulation between the mounting bracket and the boom tube.

Abstract: A device for removably attaching an accessory to first and second spaced-apart elements affixed to a bicycle and defining an opening that has a minor dimension and a major dimension comprises a support member and a cleat member, which are essentially permanently attached to each other and each of which has a medial portion adapted to span the minor dimension of the opening and a leg portion extending out from each of the opposite ends of the medial portion for engagement with opposite sides of a respective one of said elements. The overall dimension between the outer ends of the leg portions of the cleat member is less than the major dimension of the opening so that the clear member can be inserted in the opening by aligning it with the major dimension of the opening and then repositioned to align it with the minor dimension and engage the leg portions with the bicycle elements.