A bicycle headset includes a fixed member, wherein the headset is fixed onto a headtube of a bicycle via the fixed member. A steerer tube of a fork passes through the headtube and is connected to a fork portion. The fixed member has a first contour including a first guiding section, a second section, and a joint section that connects the first section and the second section and is located at the highest site among the first contour. A rotating member is fixed onto the steerer tube. A movable member is disposed onto the rotating member and is movable along an axial direction of the steerer tube. An elastic member urges the movable member to allow a second contour of the movable member to constantly touch the first contour of the fixed member, thereby preventing a stem connected to the steerer tube from overly turned and assisting to steer back.

A steering system for bicycle handlebars comprises a holding element fixed to the steer tube, in particular above an upper bearing element. A fixing element is arranged between two bearing elements. The fixing element is not directly connected to the steer tube, but is connected, in particular by form-fit, to the holding element by means of a connection means.

A foot-deck-based vehicle having an adjustable steering characteristic is provided. The foot-deck-based vehicle has a foot-deck with a front end, a rear end, and at least one rear wheel proximal to the rear end. A front wheel assembly is coupled to the foot-deck proximal to the front end to pivot relative to the foot-deck about a front wheel assembly pivot axis that is at an acute angle to a vertical axis when the foot-deck-based vehicle is upright. The front wheel assembly includes at least one front wheel rotatably coupled to a front wheel support. A steering characteristic adjustment structure adjustably controls a steering characteristic of the foot-deck-based vehicle.

A foot-deck-based vehicle having an adjustable steering characteristic is provided. The foot-deck-based vehicle has a foot-deck with a front end, a rear end, and at least one rear wheel proximal to the rear end. A front wheel assembly is coupled to the foot-deck proximal to the front end to pivot relative to the foot-deck about a front wheel assembly pivot axis that is at an acute angle to a vertical axis when the foot-deck-based vehicle is upright. The front wheel assembly includes at least one front wheel rotatably coupled to a front wheel support. A steering characteristic adjustment structure adjustably controls a steering characteristic of the foot-deck-based vehicle.

A system and method for balancing a bicycle is disclosed. The system can comprise a frame, a tension system, and a steering system. The frame can be capable of mounting to a bicycle. The tension system can comprise a first steering cable and a second steering cable. The first steering cable can be capable of connecting with a left handlebar of handlebars of the bicycle and the second steering cable can be capable of connecting with a right handlebar of the handlebars. The steering system can be mounted to the frame. The steering system can be in communication with the tension system such that manually maneuvering the steering system can adjust tension within the tension system to steer the bicycle.

A system and method for balancing a bicycle is disclosed. The system can comprise a frame, a tension system, and a steering system. The frame can be capable of mounting to a bicycle. The tension system can comprise a first steering cable and a second steering cable. The first steering cable can be capable of connecting with a left handlebar of handlebars of the bicycle and the second steering cable can be capable of connecting with a right handlebar of the handlebars. The steering system can be mounted to the frame. The steering system can be in communication with the tension system such that manually maneuvering the steering system can adjust tension within the tension system to steer the bicycle.

A light weight, automatic release, variably adjustable bicycle stabilizer is disclosed. The invention is comprised of five main parts: a first part being an adjustable, pivoting, slightly flexible u-shaped fork that stabilizes the wheel; a second part being an anchor bracket; a third part being a down tube stabilizer; a fourth part being a compression band; and a fifth part being an onboard, LED, safety light. The invention is selectively affixed to the underside of a bicycle frame. The anchor is disposed on the down tube and the slightly flexible u-shaped fork wheel stabilizer swings out from said anchor and grabs the front wheel preventing the wheel from turning and tipping the bike over. The end of each fork is wider on the inside. This stops the bicycle from rolling backward when parked on an incline.

A roller board device like a skateboard or scooter operated by a user with one or more user-maneuverable wheel assemblies that are automatically returned to their true north position is provided according to the invention. The roller board device comprises an elongated deck, at least one wheel assembly, a rotation assembly operatively engaging and extending through the opening in the deck, one end of the rotation assembly being connected to the wheel assembly positioned below the deck, the other end of the rotation assembly being connected to a user interface member extending upward beyond the top surface of the deck, and a north-seeking return mechanism secured to the deck containing an engagement member movable along a linear axis within a housing and engaging a spring disposed between the engagement member and an interior wall of the housing, the rotation assembly operatively connected to the engagement member to convert rotational movement of the rotation member into linear movement of the engagement member. When the user applies rotational force to the user engagement member to turn it to the left or right, the rotation assembly and wheel assembly are rotated in the same direction and degree to allow the roller board device to be turned, the rotated rotation assembly interacting with the engagement member of the north-seeking return mechanism to move the engagement member along its linear axis to a retracted position to compress the spring. But, when the user releases the rotational force upon the user interface member, the spring extends from its compressed state to its elongated state to move the engagement member of the north-seeking return mechanism back along the linear axis from its retracted position to its standby position, counter interacting with the rotation assembly to return the wheel assembly of the roller board device to its true north position.

A roller board device like a skateboard or scooter operated by a user with one or more user-maneuverable wheel assemblies that are automatically returned to their true north position is provided according to the invention. The roller board device comprises an elongated deck, at least one wheel assembly, a rotation assembly operatively engaging and extending through the opening in the deck, one end of the rotation assembly being connected to the wheel assembly positioned below the deck, the other end of the rotation assembly being connected to a user interface member extending upward beyond the top surface of the deck, and a north-seeking return mechanism secured to the deck containing an engagement member movable along a linear axis within a housing and engaging a spring disposed between the engagement member and an interior wall of the housing, the rotation assembly operatively connected to the engagement member to convert rotational movement of the rotation member into linear movement of the engagement member. When the user applies rotational force to the user engagement member to turn it to the left or right, the rotation assembly and wheel assembly are rotated in the same direction and degree to allow the roller board device to be turned, the rotated rotation assembly interacting with the engagement member of the north-seeking return mechanism to move the engagement member along its linear axis to a retracted position to compress the spring. But, when the user releases the rotational force upon the user interface member, the spring extends from its compressed state to its elongated state to move the engagement member of the north-seeking return mechanism back along the linear axis from its retracted position to its standby position, counter interacting with the rotation assembly to return the wheel assembly of the roller board device to its true north position.

A method and system for risk assessment of an application or infrastructure, includes: Code Intelligence Analyzers that scan historic code commits in code repositories of the application or infrastructure as well as real-time code commits; a Developer Behavior Profiler builds a behavior profile for each developer of the application, based, at least on the historic and real-time code commits and relevant issues in Issue Tracking Systems; and a Spacetime Graph, being a multidimensional graph detailing a current state of the application or infrastructure and a history of the code commits of the application or infrastructure, as determined by the Code Intelligence Analyzers and the Developer Behavior Profiler.