A stem buffer suspension assembly structure includes a main suspension stem inserted into a stem channel of a front buffer frame assembly and including a buffer assembly, wherein a stem and a headset are assembled on an end of the main suspension stem protruded out of the buffer assembly; an upper end cover assembled with the buffer assembly and abutted with a top of the stem; a lower pressing assembly is assembled with the main suspension stem and includes a lower plug member, a locking pin, a pressing member and a limit block. The lower plug member is assembled on the main suspension stem, and the lower plug member is locked with the locking part, the locking pin is screwed with the pressing member, the limit block is mounted with the locking pin and located between the lower plug member and the pressing member.

A handle weight mounting structure of a straddle-type vehicle which achieves a simple structure and thereby enables a reduction of variation in the vibration isolating performance and a cost reduction. A fastening bolt includes a shank portion in which an external thread portion to be screwed and joined to the inner face of a handle pipe is formed; and a head portion which is formed on an end part of the shank portion for pressing the outer weight in the axial direction of the handle pipe, the shank portion includes a lock portion which is designed to couple the outer weight and the inner weight to each other. The lock portion is provided on an end part of the external thread portion opposite from the head portion.

A handguard for a handle bar may include a body extending from a first contact point to a second contact point, a flexible member provided on the body, and a shock-absorbing member provided on the body. The flexible member and shock-absorbing member may be located at opposite ends of the body. The shock-absorbing member may include polyurethane. The shock-absorbing member may include a spring. The flexible member may be provided at the first contact point of the body and may include a rubber collar. The flexible member may be formed integral with the body and may include metal. The flexible member may be formed integral with the body and may include plastic. The flexible member may be integral to the handguard. The shock-absorbing member may be provided within the body at the second contact point of the body.

A bicycle suspension stem with an integrated pivot between a static part and a suspended part to provide vibration and impact absorption is provided. A bicycle stem includes a static part configured to connect to a steerer of a bicycle fork, the static part comprising a protrusion, a suspended part rotatably connected to the static part and configured to connect to a handlebar, and a biasing member disposed between the protrusion and an inside surface of the suspended part to resist rotation of the suspended part about the axis of rotation.

A bicycle suspension stem with an integrated pivot between a static part and a suspended part to provide vibration and impact absorption is provided. A bicycle stem includes a static part configured to connect to a steerer of a bicycle fork, the static part comprising a protrusion, a suspended part rotatably connected to the static part and configured to connect to a handlebar, and a biasing member disposed between the protrusion and an inside surface of the suspended part to resist rotation of the suspended part about the axis of rotation.

A bicycle includes a frame, a suspension assembly and a steering assembly. The frame includes a head tube that rotatably receives a front fork assembly. A steerer tube extends axially away from a fork crown of the front fork assembly. The suspension assembly includes an upper tubular support longitudinally slidable relative to a lower tubular support. The upper and lower supports receive a first positive biasing means and a first negative biasing means. The lower and upper supports are respectively connected to the steerer tube and a stem of the steering assembly such that the upper support slides longitudinally relative to the lower support adjacent the stem and above the fork crown.

An operating device includes a base and an operating member. The operating member is pivotally coupled to the base about a pivot axis. The base includes a base body and a cover. The cover includes a cover body and a buffering part. The cover body includes an upper outer surface, a first lateral outer surface, a second lateral outer surface, a first shoulder, and a second shoulder. The first shoulder is provided between the upper outer surface and the first lateral outer surface. The second shoulder is provided between the upper outer surface and the second lateral outer surface. The buffering part is in contact with the base body when the cover is deformed by force applied from a user's hand.

An operating device includes a base and an operating member. The operating member is pivotally coupled to the base about a pivot axis. The base includes a base body and a cover. The cover includes a cover body and a buffering part. The cover body includes an upper outer surface, a first lateral outer surface, a second lateral outer surface, a first shoulder, and a second shoulder. The first shoulder is provided between the upper outer surface and the first lateral outer surface. The second shoulder is provided between the upper outer surface and the second lateral outer surface. The buffering part is in contact with the base body when the cover is deformed by force applied from a user's hand.

A bicycle handlebar stem or stem/handlebar assembly has an inclined linear travel approximately 45 degrees from horizontal. This inclined path mimics a rider's natural arm inclination and pitching moment. 45 degrees is nearly ideal for most dropped bar road bicycles but different style bicycles may have an ideal angle between 30 and 60 degrees.

A bicycle handlebar stem or stem/handlebar assembly has an inclined linear travel approximately 45 degrees from horizontal. This inclined path mimics a rider's natural arm inclination and pitching moment. 45 degrees is nearly ideal for most dropped bar road bicycles but different style bicycles may have an ideal angle between 30 and 60 degrees.