A compound vibration absorption assembly is provided for a bike saddle, which includes a pair of compound vibration-absorption units mounted to a bottom of the saddle. Each of the compound vibration-absorption units includes an exterior enclosure barrel and an interior elastic component. The interior elastic component is received and housed in an interior space of the exterior enclosure barrel along a force applying direction. When a force is applied to the saddle, a part of the force is absorbed by the interior elastic component, while a remaining part of the force is simultaneously absorbed by the exterior enclosure barrel.

A bicycle seat post isolator assembly constructed to be fixedly engaged in a seat post receiving opening in a bicycle frame. A seat post gripper includes an elongated inner tubular body with an outer elastomeric layer/covering, inserted into the opening to receive a seat post coaxially therein. The layer/covering is positioned between the body and the bicycle frame. A retaining structure designed to be fixed adjacent an edge of the seat post receiving opening with a portion extending into the opening to only engage portions of the outer elastomeric layer/covering of the seat post gripper so as to lock the seat post gripper in the seat post receiving opening, whereby the layer/covering of the gripper is positioned between the body of the gripper with the seat post inserted coaxially into the gripper and the bicycle frame.

A bicycle seat post isolator assembly constructed to be fixedly engaged in a seat post receiving opening in a bicycle frame. A seat post gripper includes an elongated inner tubular body with an outer elastomeric layer/covering, inserted into the opening to receive a seat post coaxially therein. The layer/covering is positioned between the body and the bicycle frame. A retaining structure designed to be fixed adjacent an edge of the seat post receiving opening with a portion extending into the opening to only engage portions of the outer elastomeric layer/covering of the seat post gripper so as to lock the seat post gripper in the seat post receiving opening, whereby the layer/covering of the gripper is positioned between the body of the gripper with the seat post inserted coaxially into the gripper and the bicycle frame.

A conveyance seat includes a saddle-type seat on which an occupant sits to straddle and a seat height adjustment unit which is attached below the seat and is able to adjust a height position of the seat. The seat height adjustment unit includes a rotation link which rotates together with the seat with respect to a chassis to adjust a height position of the seat, an upper link support member that is provided between the seat and the rotation link and is used so that an upper end portion of the rotation link is attached thereto, a lower link support member that is provided between the rotation link and the chassis and is used so that a lower end portion of the rotation link is attached thereto, and a flexible cover member that covers the rotation link from the outside in a front to back direction of the seat and a width direction of the seat.

A vehicle (300), comprising: a frame (310) comprising a head tube (314) and a rear driven axle support (312); a motion control system; and a payload support (320) movably connected to the frame (310) via the motion control system such that the payload support (320) moves non-linearly relative to the frame (310), wherein the payload support (320) comprises a seat support, and in a first operating state of the vehicle (300), the motion control system, in response to a driven acceleration of the frame (310) in a forward direction, imparts a force onto the payload support (320) that accelerates the seat support (320) in the forward direction at an acceleration no less than an acceleration of the rear driven axle support (312) in the forward direction.

A vehicle (300), comprising: a frame (310) comprising a head tube (314) and a rear driven axle support (312); a motion control system; and a payload support (320) movably connected to the frame (310) via the motion control system such that the payload support (320) moves non-linearly relative to the frame (310), wherein the payload support (320) comprises a seat support, and in a first operating state of the vehicle (300), the motion control system, in response to a driven acceleration of the frame (310) in a forward direction, imparts a force onto the payload support (320) that accelerates the seat support (320) in the forward direction at an acceleration no less than an acceleration of the rear driven axle support (312) in the forward direction.

A bicycle saddle with an ischial-perineal suspension region may include a monolithic frame, a flexible lamina stretched across and attached to the frame, a cushion on the lamina, and a cover over the cushion. The frame may include a mounting rail configured to attach to a seat post of a bicycle, a seat rail, a nose, and an open region circumscribed by the seat rail and the nose. The seat rail may include a rear rail that forms an arc-shape, a first side rail that forms a first trough, and a second side rail that forms a second trough. The nose may extend from the seat rail and/or the mounting rail. The open region may be an ischial-perineal suspension region. The flexible lamina may be stretched over the open region. The cushion may be disposed on the lamina over the open region.

A saddle for a bicycle can be configured to provide improved vibration isolation performance. The saddle can include a saddle body. The saddle body can include a front region and a rear region. The saddle can include a plurality of isolators. The plurality of isolators can be operatively connected to the saddle body in the rear region. The plurality of isolators can include a stack of a plurality of conical springs. The saddle can include a rail member. The rail member can be operatively connected to the plurality of isolators. Further, the rail member can be operatively connected to the saddle body in the front region.

A saddle for a bicycle can be configured to provide improved vibration isolation performance. The saddle can include a saddle body. The saddle body can include a front region and a rear region. The saddle can include a plurality of isolators. The plurality of isolators can be operatively connected to the saddle body in the rear region. The plurality of isolators can include a stack of a plurality of conical springs. The saddle can include a rail member. The rail member can be operatively connected to the plurality of isolators. Further, the rail member can be operatively connected to the saddle body in the front region.

An auxiliary wheel mechanism 151 of a two-wheeled vehicle disclosed herein includes an auxiliary wheel 1, a saddle support member 7, a transmission member 9, and an auxiliary wheel urging member 23. The auxiliary wheel 1 is supported by a vehicle body 11 to be located on a side of a rear wheel 13 and to be movable between a retracted position retracted from a road surface 17 and an operative position where the vehicle body 11 is supported against the road surface 17 so as not to tilt. The saddle support member 7 is provided on the vehicle body 11 and supports a saddle 27 such that the saddle 27 is movable backward and forward. The transmission member 9 transmits a backward and forward movement of the saddle 27 to the auxiliary wheel 1 such that the auxiliary wheel 1 is located at the retracted position when the saddle 27 is located at a front position, and the auxiliary wheel 1 is located at the operative position when the saddle 27 is located at a rear position. The auxiliary wheel urging member 23 urges the auxiliary wheel 1 toward the retracted position. Accordingly, it is possible to achieve the auxiliary wheel mechanism that is for the two-wheeled vehicle and enables a rider to move an auxiliary wheel between a retracted position and an operative position without a manual operation of the rider.