An embodiment personal mobility includes a height adjustment device configured to adjust a height of a steering handle, an image sensor configured to measure user body information, and a controller configured to control the height adjustment device to adjust the height of the steering handle based on the user body information measured by the image sensor.

A seal for use between a first and second telescopically configured bicycle member, comprises a substantially cylindrical body having a first ring portion and a second ring portion. The first ring portion has a diameter that is different than a diameter of the second ring portion. The top ring portion is coupled to a first telescopic member and the bottom ring portion is coupled to a second telescopic member. The body has an opening defined therethrough from a top surface of the first ring portion to a bottom surface of the second ring portion. The opening receives the first telescopic member therethrough. An injector port is coupled to the body and has a first port opening and a second port opening. A port channel is in communication with the first and second port openings. The second port opening is in communication with a pocket configured to hold a fluid therein, the injector port configured to receive the lubricant in a first flow direction from the first port opening to the second port opening, wherein the pocket houses the lubricant therein to maintain communication between the lubricant and the first and second telescopic members.

A seal for use between a first and second telescopically configured bicycle member, comprises a substantially cylindrical body having a first ring portion and a second ring portion. The first ring portion has a diameter that is different than a diameter of the second ring portion. The top ring portion is coupled to a first telescopic member and the bottom ring portion is coupled to a second telescopic member. The body has an opening defined therethrough from a top surface of the first ring portion to a bottom surface of the second ring portion. The opening receives the first telescopic member therethrough. An injector port is coupled to the body and has a first port opening and a second port opening. A port channel is in communication with the first and second port openings. The second port opening is in communication with a pocket configured to hold a fluid therein, the injector port configured to receive the lubricant in a first flow direction from the first port opening to the second port opening, wherein the pocket houses the lubricant therein to maintain communication between the lubricant and the first and second telescopic members.

A foldable electric scooter and a manufacture method of the same. The foldable electric scooter includes a main body assembly, a front fork assembly located at the front end of the main body assembly, a rear fork assembly located at the rear end of the main body assembly, a telescoping plate assembly located on top of the front fork assembly and a handlebar assembly located on top of the telescoping plate assembly. The foldable electric scooter has a double headset design that increases a rake angle for more steering stability while still keeping the steering upright for an upright holding of the handlebars. The foldable electric scooter is manufactured by stamping of flat plate material.

The invention relates to a handlebar stem, which permits simple and quick loosening and twisting, as well as simple and safe resetting and fastening of said stem with the handlebar attached thereto. The problem of the invention is to provide a particularly simple, theft-proof and versatile alternative involving low manufacturing costs, and which can also easily be retrofitted. A stem set according to the invention comprises a stem and at least one locking device, which can be fixedly clamped to the steerer tube. According to the invention, the stem set is arranged, such that when mounted on the steerer tube, the locking device fixedly connected to the steerer tube prevents the stem from being pulled off the steerer tube. However, this can also be achieved, for example, by the stem engaging around and/or behind the locking device and/or the locking device engaging around and/or behind the stem.

The invention relates to a handlebar stem, which permits simple and quick loosening and twisting, as well as simple and safe resetting and fastening of said stem with the handlebar attached thereto. The problem of the invention is to provide a particularly simple, theft-proof and versatile alternative involving low manufacturing costs, and which can also easily be retrofitted. A stem set according to the invention comprises a stem and at least one locking device, which can be fixedly clamped to the steerer tube. According to the invention, the stem set is arranged, such that when mounted on the steerer tube, the locking device fixedly connected to the steerer tube prevents the stem from being pulled off the steerer tube. However, this can also be achieved, for example, by the stem engaging around and/or behind the locking device and/or the locking device engaging around and/or behind the stem.

The invention relates to a handlebar stem, which permits simple and quick loosening and twisting, as well as simple and safe resetting and fastening of said stem with the handlebar attached thereto. The problem of the invention is to provide a particularly simple, theft-proof and versatile alternative involving low manufacturing costs, and which can also easily be retrofitted. A stem set according to the invention comprises a stem and at least one locking device, which can be fixedly clamped to the steerer tube. According to the invention, the stem set is arranged, such that when mounted on the steerer tube, the locking device fixedly connected to the steerer tube prevents the stem from being pulled off the steerer tube. However, this can also be achieved, for example, by the stem engaging around and/or behind the locking device and/or the locking device engaging around and/or behind the stem.

The invention relates to a handlebar stem, which permits simple and quick loosening and twisting, as well as simple and safe resetting and fastening of said stem with the handlebar attached thereto. The problem of the invention is to provide a particularly simple, theft-proof and versatile alternative involving low manufacturing costs, and which can also easily be retrofitted. A stem set according to the invention comprises a stem and at least one locking device, which can be fixedly clamped to the steerer tube. According to the invention, the stem set is arranged, such that when mounted on the steerer tube, the locking device fixedly connected to the steerer tube prevents the stem from being pulled off the steerer tube. However, this can also be achieved, for example, by the stem engaging around and/or behind the locking device and/or the locking device engaging around and/or behind the stem.

Spacer for spacing a headset from a stem of a bicycle. The spacer comprises a cable guide, in particular for brake cables and gear shift cables. The cable guide is provided with a cable guide opening and a cable guide wall enclosing the cable guide opening. The cable guide wall is interrupted by a cable insertion gap, allowing lateral insertion of a cable. Optionally, the cable guide comprises cable retaining means for retaining an inserted cable within the cable guide opening.

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.