An aerodynamic assembly for bike handlebars, includes two distinct extension devices (4a, 4b), each of the two extension devices (4a, 4b) having: a first armrest-forming part (5a, 5b), able to be fastened on a transverse bar of a bike handlebars (1) while extending longitudinally forwards and including a longitudinal extension (6a, 6b) forming a free end portion. An upper surface of the first part with its longitudinal extension forming a receiving surface for a forearm part of a cyclist. A second extension-forming part (8a, 8b), able to be fastened, in a removable manner and in the extension of the first part (5a, 5b), to the free end portion, the second extension-forming part (8a, 8b) being able to slide longitudinally relative to said longitudinal extension (6a, 6b) so as to allow an adjustment of a distance separating a free end of the second extension-forming part (8a, 8b) from the first armrest-forming part (5a, 5b).

An aerodynamic assembly for bike handlebars, includes two distinct extension devices (4a, 4b), each of the two extension devices (4a, 4b) having: a first armrest-forming part (5a, 5b), able to be fastened on a transverse bar of a bike handlebars (1) while extending longitudinally forwards and including a longitudinal extension (6a, 6b) forming a free end portion. An upper surface of the first part with its longitudinal extension forming a receiving surface for a forearm part of a cyclist. A second extension-forming part (8a, 8b), able to be fastened, in a removable manner and in the extension of the first part (5a, 5b), to the free end portion, the second extension-forming part (8a, 8b) being able to slide longitudinally relative to said longitudinal extension (6a, 6b) so as to allow an adjustment of a distance separating a free end of the second extension-forming part (8a, 8b) from the first armrest-forming part (5a, 5b).

An apparatus for positioning and securing a steering grip in at least two different positions on a vehicle comprises a first frame configured to hold a grip that a person can use to steer and control a vehicle when the person holds the grip; a second frame operable to hold the first frame in a first position and operable to hold the first frame in a second position, wherein when the vehicle is driven by a person and the person holds the grip to steer and control the vehicle.

An apparatus for positioning and securing a steering grip in at least two different positions on a vehicle comprises a first frame configured to hold a grip that a person can use to steer and control a vehicle when the person holds the grip; a second frame operable to hold the first frame in a first position and operable to hold the first frame in a second position, wherein when the vehicle is driven by a person and the person holds the grip to steer and control the vehicle.

A product may include a pair of handles that may be foldable. A wedge may be engaged between the pair of handles and may lock the pair of handles in a first position. A release mechanism may be connected to the wedge. Operation of the release mechanism may move the wedge to disengage from and to unlock the handles and may enable moving the pair of handles to a folded position.

A product may include a pair of handles that may be foldable. A wedge may be engaged between the pair of handles and may lock the pair of handles in a first position. A release mechanism may be connected to the wedge. Operation of the release mechanism may move the wedge to disengage from and to unlock the handles and may enable moving the pair of handles to a folded position.

This disclosure is directed to devices and techniques for improved handlebar risers. According to various aspects of this disclosure, a handlebar riser includes a first component and a second component. The first component includes a first steering column mounting channel, and a first handlebar mounting channel. The second component includes a second steering column mounting channel, and a second handlebar mounting channel. The first component and second component are sized, shaped, and arranged such that when respective abutment surfaces of the first and second components are placed together, the first and second steering column mounting channel form a first channel that substantially surrounds at least part of a vehicle steering column, and the first and second handlebar mounting channel forms a second channel that substantially surrounds at least part of a vehicle handlebar. The first and second components are mechanically coupleable to one another.

This disclosure is directed to devices and techniques for improved handlebar risers. According to various aspects of this disclosure, a handlebar riser includes a first component and a second component. The first component includes a first steering column mounting channel, and a first handlebar mounting channel. The second component includes a second steering column mounting channel, and a second handlebar mounting channel. The first component and second component are sized, shaped, and arranged such that when respective abutment surfaces of the first and second components are placed together, the first and second steering column mounting channel form a first channel that substantially surrounds at least part of a vehicle steering column, and the first and second handlebar mounting channel forms a second channel that substantially surrounds at least part of a vehicle handlebar. The first and second components are mechanically coupleable to one another.

A bicycle handlebar module combining brake levers and derailleur shifter control devices comprises a bicycle handlebar, two brake levers, and two derailleur shifter control devices, two ends of the bicycle handlebar are respectively formed with a grip part, and a front side of the bicycle handlebar near each of the two ends is respectively formed with a pivoting part and an accommodating part, the two brake levers are pivotally connected to the two pivoting parts with one end respectively, the brake levers are exposed on the front side of the bicycle handlebar, and the two derailleur shifter control devices are respectively disposed in the accommodating parts of the bicycle handlebar; thereby, the bicycle handlebar, the brake levers and the two derailleur shifter control devices jointly form a modular structure, and thus achieving an object of modular production and modular sales.

A stem assembly and an electric vehicle are provided. The stem assembly includes: a stem telescoping mechanism including a first hollow tube, a second hollow tube, and a locking mechanism, the locking mechanism having a locked state and an movable state; a handle folding mechanism arranged to the stem telescoping mechanism, the handle folding mechanism including a handle assembly and a first limiting member, the first limiting member being movably arranged, and having a first limiting position and a first evading position; and a driving mechanism connected to both the locking mechanism and the first limiting member, and configured to be operated to control the stem telescoping mechanism and the handle folding mechanism to synchronously move.