Abstract: A brake disk includes a disk body with an inner ring portion adapted to be coupled to a wheel hub, an outer ring portion disposed around the inner ring portion and adapted to be in frictional contact with a brake pad, and a plurality of connecting ribs extending between and interconnecting the inner and outer ring portions. Each of the connecting ribs has a reinforcing portion which projects relative to one of two opposite side surfaces of the disk body.

Abstract: A bicycle wheel rim includes an annular connecting wall interconnecting left and right tire retaining walls. The connecting wall has left and right wall parts, each having an outer terminating edge adjacent to a respective tire retaining wall, and an inner terminating edge, and an intermediate wall part extending between the inner terminating edges and indented radially and inwardly to define an annular receiving groove. Each of the left and right wall parts has a radial outer surface formed with an annular rib such that the radial outer surface is defined with an outer section between the rib and the outer terminating edge, and a flat inner section between the rib and the inner terminating edge. The rib has first and second stop surfaces connected respectively to the inner and outer sections.

Abstract: A bicycle wheel rim includes an annular rim body having a central axis. The annular rim body includes annular left and right side walls spaced apart from each other. Each of the side walls has a radial inner edge proximate to the central axis, a radial outer edge distal to the central axis, and a lateral outer brake pad contacting surface opposite to the other one of the side walls. The annular rim body further includes an annular base wall interconnecting the radial inner edges of the left and right side walls. The brake pad contacting surface of each of the side walls is formed with a wear-indicating projection adapted to be in frictional contact with a brake pad. The wear-indicating projection is formed as a continuous annular projection that extends along a respective one of the side walls.

Abstract: A bicycle wheel includes a hub and a plurality of mounting seats arranged around the hub and pivoted to the hub for pivoting about axes parallel to an axis of the hub. A plurality of spokes have outer ends mounted on a wheel rim, and inner ends mounted on the mounting seats for mounting the wheel rim on the hub.

Abstract: A bicycle wheel rim has an integrally formed annular rim body with left and right tire retaining walls, and a base wall interconnecting the tire retaining walls. The base wall has a radial inner face facing a central axis of the rim body, a radial outer face, a left section connected to the left tire retaining wall, a right section connected to the right tire retaining wall, and a vaulted portion interconnecting the left and right sections. The vaulted portion is vaulted in a radial outward direction relative to the left and right sections so as to define an annular recess in the radial inner face and an annular protrusion on the radial outer face. The annular recess is adapted for retaining a peripheral portion of a circular disc therein. Optionally, the base wall is formed with a plurality of spoke mounting holes distributed in the left and right sections and adapted for retaining spoke fasteners therein.

Abstract: A bicycle wheel includes a wheel rim and a plurality of spokes. The wheel rim includes spaced left and right tire retaining walls that are interconnected by a base wall. Each of the tire retaining walls is formed with a set of spoke mounting holes, each of which extends through lateral outer and inner surfaces of the tire retaining wall. Each spoke has an inner end portion mounted on a hub, and an outer end portion which includes an enlarged head abutting against the lateral outer surface of the respective tire retaining wall, an extending section received in a respective spoke mounting hole, and a bending section disposed adjacent to the lateral inner surface of the respective tire retaining wall. The bending section is bent from the extending section, and extends toward the inner end portion of the spoke.

Abstract: A retaining device includes a pair of annular retaining members and a pair of securing members. Each annular retaining member is adapted to be interposed between an axle and enlarged head portions of spoke tightening members in an annular space defined between the axle and an annular inner peripheral wall of a tubular mount member. The annular retaining member includes an annular inner ring portion sleeved on the axle, an annular outer ring portion surrounding and rotatable relative to the annular inner ring portion, and a rolling element disposed between the annular inner and outer ring portions. Each securing member is disposed to secure the annular inner ring portion on the axle such that the annular outer ring portion faces towards the enlarged head portions so as to guard shoulders of the spoke tightening members against being loosened from abutment with the inner peripheral wall.

Abstract: A bicycle wheel rim is adapted for use with a brake pad and is adapted for mounting a plurality of spokes thereon. The bicycle wheel rim includes spaced left and right annular tire retaining walls adapted for retaining a bicycle tire therebetween. Each of the tire retaining walls has an inner edge portion proximate to a central point of the wheel rim, and an outer edge portion distal to the central point of the wheel rim. Each of the tire retaining walls further has an outer wall surface that has a first width in a radial direction of the wheel rim. The first width is larger than a width of the brake pad in the radial direction of the wheel rim. The outer wall surface is allocated with a brake pad contacting portion that is adapted to contact the brake pad and that has a second width in the radial direction of the wheel rim. The second width ranges from 50 to 60% of the first width.

Abstract: A bicycle wheel rim includes spaced left and right annular tire retaining walls adapted for retaining a bicycle tire therebetween. Each of the tire retaining walls has a central axis, a radial inner edge proximate to the central axis, a radial outer edge distal to the central axis, and a brake pad contacting surface opposite to the other one of the tire retaining walls. An annular spoke mounting wall interconnects the radial inner edges of the tire retaining walls. The brake pad contacting surface of at least one of the tire retaining walls is formed with a plurality of radial grooves which are spaced apart from each other in a circumferential direction relative to the central axis and which extend along radial directions of the tire retaining walls from the radial inner edge to the radial outer edge. Each of the radial grooves has at least two opposite open ends formed respectively through the radial inner and radial outer edges.

Abstract: A bicycle wheel rim used for mounting a plurality of spokes thereon includes spaced left and right annular tire retaining walls adapted for retaining a bicycle tire therebetween, and an annular spoke mounting wall. Each of the tire retaining walls has an inner edge proximate to a central point of the wheel rim, and an outer edge distal to the central point of the wheel rim. The spoke mounting wall interconnects the inner edges of the tire retaining walls, and has a central bridging portion with left and right terminating edges, a left corner block which interconnects the inner edge of the left tire retaining wall and the left terminating edge of the bridging portion and which is formed with a set of left spoke fastening holes, and a right corner block which interconnects the inner edge of the right tire retaining wall and the right terminating edge of the bridging portion and which is formed with a set of right spoke fastening holes that are staggered with respect to the left spoke fastening holes.

Abstract: A bicycle wheel rim includes a rim body having an annular spoke-mounting wall and spaced left and right annular tire-retaining walls, and a pair of wear-resisting rings. The spoke-mounting wall has two annular lateral peripheral edges. The left and right annular tire-retaining walls extend integrally, radially, outwardly and respectively from the lateral peripheral edges of the spoke-mounting wall. Each of the tire-retaining walls has an inner surface that faces the other one of the tire-retaining walls to confine a tire receiving space therewith, an outer brake pad contacting surface opposite to the inner surface, and an annular end face distal to the spoke-mounting wall. Each of the tire-retaining walls further has a tire retaining projection, formed at a corner of the end face and the inner surface for engaging a bicycle tire so as to retain the bicycle tire between the tire-retaining walls. The wear-resisting rings are made of a resilient material.

Abstract: A bicycle wheel rim includes a unitary integrally formed rim body which has annular left and right tire retaining walls that are spaced apart from each other, and an annular bridging portion. Each of the tire retaining walls has a radial inner section proximate to a central point of the wheel rim, a radial outer section distal to the central point of the wheel rim, and an intermediate section between the radial inner and radial outer sections. The radial outer sections of the tire retaining walls are adapted for retaining a bicycle tire therebetween. The bridging portion interconnects the intermediate sections of the tire retaining walls, and cooperates with the tire retaining walls to provide the rim body with a generally H-shaped cross-section.

Abstract: A bicycle wheel rim includes an annular rim body having spaced left and right annular tire retaining walls adapted for retaining a bicycle tire therebetween, and an annular connecting wall interconnecting the tire retaining walls and cooperating with the tire retaining walls so as to confine a tire receiving space thereamong. A spoke mounting seat extends from the rim body and is disposed outwardly of the tire receiving space. The spoke mounting seat is formed with a plurality of spoke fastening holes therethrough for mounting of the spokes thereon.

Abstract: A bicycle wheel rim includes a rim body and a braking plate. The rim body includes annular first and second tire retaining walls adapted for retaining a bicycle tire therebetween, and a spoke mounting portion. Each of the tire retaining walls has a radial inner edge proximate to an axis of the wheel rim, a radial outer edge adapted for retaining the bicycle tire therebetween, and a lateral outer surface opposite to the other one of the tire retaining walls. The rim body further includes an annular spoke mounting portion which interconnects the radial inner edges of the tire retaining walls and which is adapted for mounting spokes thereon. The braking plate projects integrally from the lateral outer surface of the first tire retaining wall, and has two opposite brake pad contacting surfaces adapted to be contacted by brake pads of a brake device.

Abstract: A bicycle wheel rim adapted for mounting a plurality of spokes thereon includes spaced left and right tire retaining walls, an annular spoke mounting wall, an annular connecting wall, and left and right reinforcing walls. The spoke mounting wall interconnects inner edges of the tire retaining walls, and has a central spoke fastening portion formed with spoke fastening holes. The connecting wall is disposed around the spoke mounting wall, and interconnects intermediate portions of the tire retaining walls. The left reinforcing wall has a first end connected to a left terminating edge of the connecting wall and the intermediate portion of the left tire retaining wall, and a second end connected to the central spoke fastening portion of the spoke mounting wall. The left reinforcing wall is inclined with respect to the left tire retaining wall.

Abstract: A bicycle wheel rim includes an annular rim body and a plurality of mounting members. The rim body has an axis, and includes a tire retaining portion which has annular left and right tire retaining walls that are spaced apart from each other. Each of the tire retaining walls has a radial inner edge proximate to the axis of the rim body, and a radial outer edge distal to the axis of the rim body. The rim body further includes an annular spoke mounting portion disposed radially inward of the tire retaining portion and interconnecting the radial inner edges of the tire retaining walls. The spoke mounting portion has two opposite lateral outer surfaces, and is formed with a plurality of receiving holes that extend through the lateral outer surfaces and that are distributed along the length of the rim body. The mounting members are received in the receiving holes, respectively. Each of the mounting members has two opposite mounting ends that project from the lateral outer surfaces of the spoke mounting portion.

Abstract: A bicycle wheel rim includes an annular frame formed from a metal strip with opposite end portions and having spaced left and right annular tire retaining walls with brake pad contacting surfaces, an annular inner spoke mounting wall interconnecting inner edges of the tire retaining walls, and an annular outer connecting wall disposed around the spoke mounting wall and interconnecting the tire retaining walls. The tire retaining walls, the spoke mounting wall and the outer connecting wall cooperatively confine an annular channel. Each of the left and right annular tire retaining walls, the spoke mounting wall and the outer connecting wall has two confronting end faces that are disposed respectively at the end portions of the metal strip and that are in close contact with each other. A connecting member is fitted in the channel and extends into the end portions of the metal strip. A weld connection is provided on the annular frame to strengthen connection between the end portions of the metal strip.