A bicycle includes a lower frame member and an upper frame member connected to a head tube. The lower frame member includes a down tube, a bottom bracket, and chain stays. The upper frame member includes a top tube, seat stays, and a passage formed in part by a first side wall and a second side wall. The first and second side walls include a first and second openings, respectively. A seat tube extends in an upward direction from the bottom bracket and through the passage. The seat tube includes an opening that extends laterally therethrough. A passive pivot assembly secures the seat tube within the passage, and includes a guide sleeve that extends through the first opening, through the opening in the seat tube, and through the second opening. One or more fasteners secure the guide sleeve to the upper frame member.

A universal bicycle mounting apparatus that secures an infant car seat to a bicycle frame is provided. The mounting apparatus includes a base frame coupled to the frame of the bicycle and having a plurality of legs, the plurality of legs having a pair of front legs and a pair of rear legs, each front leg of the pair of front legs coupled to one of the pair of rear legs at a junction, each front leg in the pair of front legs having a front spring coupled thereto, each rear leg in the pair of rear legs having a rear spring coupled thereto, and a cradle designed to support the infant car seat and coupled to the front springs of the front legs and the rear springs of the rear legs.

Among other things, a compliant element is configured to attach a seat of a device on which a user pedals to a frame of the device. The compliant element has a stiffness that is small enough to permit substantially unimpeded rocking of the seat relative to the frame in a plane in which the spine and pelvic bone of the user lie when the user is on the seat, and is large enough to maintain the seat in a substantially horizontal plane when the user is not on the seat.

Among other things, a compliant element is configured to attach a seat of a device on which a user pedals to a frame of the device. The compliant element has a stiffness that is small enough to permit substantially unimpeded rocking of the seat relative to the frame in a plane in which the spine and pelvic bone of the user lie when the user is on the seat, and is large enough to maintain the seat in a substantially horizontal plane when the user is not on the seat.

A shell for a bicycle saddle has a groove opened through top and bottom surfaces thereof, a narrow anterior portion having a front edge, and a wide posterior portion having a rear edge and divided by an imaginary longitudinal axis passing through the front and rear edges and the groove into left and right regions where two sockets are located, respectively. The groove has a longitudinal section extending along the axis, and a transverse section extending from a rear end of the longitudinal section to the left and right regions so as to form two elastic wings adjacent to the groove. Each socket has a connecting sheet and an insertion block and extends from rear and lateral edges of the wide posterior portion to a position under the bottom surface to form a space therebetween. As a result, the shell has great elasticity and structural strength.

A shell for a bicycle saddle has a groove opened through top and bottom surfaces thereof, a narrow anterior portion having a front edge, and a wide posterior portion having a rear edge and divided by an imaginary longitudinal axis passing through the front and rear edges and the groove into left and right regions where two sockets are located, respectively. The groove has a longitudinal section extending along the axis, and a transverse section extending from a rear end of the longitudinal section to the left and right regions so as to form two elastic wings adjacent to the groove. Each socket has a connecting sheet and an insertion block and extends from rear and lateral edges of the wide posterior portion to a position under the bottom surface to form a space therebetween. As a result, the shell has great elasticity and structural strength.

A bicycle seat can include an attachment structure configured to be secured to a bicycle frame. The seat can also include a support frame, which can include right and left arms extending laterally out on opposite sides of a vertically-oriented medial plane of the bicycle seat. The seat can include walls, which can include a front wall and a rear wall that extend up and laterally out from the attachment structure to support the right and left arms. Right and left seat pads can be selectively securable to the right and left arms, and can be adjusted between different positions relative to each other. Each seat pad can include a main pad portion that is secured to the corresponding arm and is configured to provide upward support to a corresponding ischium (sometimes referred to as the sit bone) of the rider, and an elongate extension that can extend laterally out and forward beyond the main pad portion.

An adjustable seat assembly for a motorcycle has a seat pan and an adjustment mechanism. The seat pan includes a base portion and two pivoting portions that are pivotally connected to the base portion and are arranged laterally adjacent to one another on the base portion. The base portion has a fastening portion for fastening the seat assembly on the motorcycle. The adjustment mechanism is designed to pivot each of the two pivoting portions in relation to the base portion to adjust a lateral width of the seat assembly. A motorcycle with an adjustable seat assembly is also provided.

An adjustable seat assembly for a motorcycle has a seat pan and an adjustment mechanism. The seat pan includes a base portion and two pivoting portions that are pivotally connected to the base portion and are arranged laterally adjacent to one another on the base portion. The base portion has a fastening portion for fastening the seat assembly on the motorcycle. The adjustment mechanism is designed to pivot each of the two pivoting portions in relation to the base portion to adjust a lateral width of the seat assembly. A motorcycle with an adjustable seat assembly is also provided.

A telescopic saddle support for supporting a bicycle saddle includes a support unit to be secured on or in the frame of a bicycle; a telescoping unit to be moved in a guided manner relative to the support unit within a specified telescoping range, the telescoping range extending from a minimum length of the saddle support to a maximum length of the saddle support; and a coupling device arranged between the telescoping unit and the support unit. A coupling device part which is paired with the support unit is connected to the support unit in a fixed manner, and the telescoping unit can be coupled to the support unit via the coupling device. A blocking device releasably blocks the guided telescoping movement of the telescoping unit relative to the support unit. The coupling device has an adjustment mechanism via which the maximum length of the saddle support can be adjusted, an axial force which acts on the telescoping unit being transmitted to the support unit via the coupling device.