Abstract: A handlebar stem assembly includes a stem having a ridge axially on a top thereof and a sliding member is slidably mounted to the ridge and cooperates with a first end of the stem to define a handlebar hole in which the handlebar is secured. A passage is defined in a second end of the stem so as to be connected with the steerering tube of a front fork. A pivotable member is pivotably connected to the sliding member and urged between the sliding member and a portion of the stem. A spring is biased between the ridge and the sliding member. The sliding member can be moved toward second end of the stem to open the handlebar hole while the pivotable member is pivoted relative to the sliding member. The handlebar hole is partially closed by releasing the sliding member.

Abstract: A bicycle seat securing device includes a clamping unit connected to a seat stem and the clamping unit includes a left clamp and a right clamp. The seat stem is located between the left clamp and the right clamp. The left clamp and the right clamp are moved linearly in the radial direction of the seat stem so as to clamp rails of the seat. A bolt extends through the clamping unit and the seat stem and the clamping unit can be pivotable about the bolt to adjust the seat.

Abstract: A bicycle wheel includes a hub including two connection parts on two ends thereof respectively and a plurality of spokes each have a connection ring which is mounted on the connection part. The second ends of the spokes are connected to a rim. The connection parts each have ribs and each connection ring includes recesses defined in an inner periphery thereof, the ribs are engaged with the recesses.

Abstract: A spoke for bicycle wheel includes an elongate body and a first connection member and a second connection member are respectively connected to two ends of the elongate body so as to be connected to the hub and the rim of the bicycle wheel. Each of the first and second connection members has an enlarged end which is received in the elongate body to provide strong connection between the connection members and the spoke. The enlarged end can be an open or closed end which is a hollow or solid portion.

Abstract: A bicycle wheel rim assembly includes a rim and a hub is located at a center of the rim. A plurality of spokes are connected between the hub and the rim. Each spoke is a flat board and includes a first end which is engaged with one of the notches defined in the hub and a plurality threaded sections extend from a second end of each spoke, the threaded sections are fixed to the rim.