Abstract: A parallelogram suspension in a bicycle, the parallelogram suspension comprising a first swing arm rotatably coupled to a seat post at a first end of the first swing arm; a second swing arm rotatably coupled to the seat post at a first end of the second swing arm; a linkage rotatably coupled between a second end of the first swing arm and a second end of the second swing arm; a deformable support disposed in a volume defined between the first swing arm, the second swing arm, and the linkage; and a release configured to selectively open the volume to release the deformable support.

Abstract: Shock absorption assemblies are provided. A shock absorption assembly includes an air shock that has a valve body. An air spring tube defines an air spring chamber. A piston rod extends through the air spring chamber to an oil piston head. An air piston head movably coupled to the piston rod. An oil damper tube is coupled to the piston head and is movable relative to the piston rod and the air spring tube. The shock absorption assembly further includes a mechanical spring disposed radially outward from, and that annularly surrounds, at least a portion of the air shock.

Abstract: Headsets and head tube assemblies for vehicles are provided. The vehicle includes a steerer tube and a head tube. The headset is rotatably connected to the steerer tube and the head tube. The headset includes a coupling ring that has a body and a central bore defined in and extending through the body. The coupling ring is connectable to and rotatable with the steerer tube. A cup that has a body and a central bore defined in and extending through the body. The cup is connectable to and rotatable with the head tube. A bearing assembly disposed between the cup and the coupling ring. The bearing assembly has an inner race, an outer race, and a bearing member disposed between the inner race and the outer race. A damping fluid surrounds the bearing member to dampen vibrations between the steerer tube and the head tube.

Abstract: A parallelogram suspension in a bicycle, the parallelogram suspension comprising a first swing arm rotatably coupled to a seat post at a first end of the first swing arm; a second swing arm rotatably coupled to the seat post at a first end of the second swing arm; a linkage rotatably coupled between a second end of the first swing arm and a second end of the second swing arm; a deformable support disposed in a volume defined between the first swing arm, the second swing arm, and the linkage; and a release configured to selectively open the volume to release the deformable support.

Abstract: An elastomer support for a parallelogram suspension in a bicycle, the deformable support comprising a deformable body defining an opening, wherein the deformable body is configured to be disposed within a volume defined by the parallelogram suspension; and an insert removably insertable into the opening of the deformable body.