A bicycle handlebar system that ensures comfort, safety, and increased center of gravity control. An ergonomic bicycle handlebar system having a sweep angle in the range of 4 to 45 degrees, a slope angle in the range of 5 to 60 degrees or both accomplishes comfort, safety, and increased center of gravity control. The handlebar may be made of nano tube zlyte resin with graphene-impregnated carbon fibers. The interplay of sweep angle and slope angle is recognized.

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.

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.

A system for biomechanical analysis of user posture and automatic customized manufacture of bicycle parts includes a servo-assisted simulator having a handlebar, a saddle, pedal cranks, and actuators, a device detecting input data that includes a 3D scanner for automatically detecting the position of body segments of the user and the angular ranges therebetween and generating three-dimensional physical data units, an electronic platform detecting pressure data of the user, a pair of insoles detecting plantar pressure, a computer connected to the actuators and to the detection device, a memory unit storing optimized initial data and instantaneous data, software comparing the optimized initial data and the instantaneous data and generating final data of the characteristics of the main parts, a spatial representation device spatially representing the final data, and a device for immediate manufacture of the parts using 3D printers. A method of biomechanical analysis and custom manufacture of bicycle parts.

A system for biomechanical analysis of user posture and automatic customized manufacture of bicycle parts includes a servo-assisted simulator having a handlebar, a saddle, pedal cranks, and actuators, a device detecting input data that includes a 3D scanner for automatically detecting the position of body segments of the user and the angular ranges therebetween and generating three-dimensional physical data units, an electronic platform detecting pressure data of the user, a pair of insoles detecting plantar pressure, a computer connected to the actuators and to the detection device, a memory unit storing optimized initial data and instantaneous data, software comparing the optimized initial data and the instantaneous data and generating final data of the characteristics of the main parts, a spatial representation device spatially representing the final data, and a device for immediate manufacture of the parts using 3D printers. A method of biomechanical analysis and custom manufacture of bicycle parts.

A bicycle operating device comprises a base member and an operating member. The base member includes a hydraulic-unit attachment part to which a hydraulic unit is to be attached, and a first end portion to be mounted to a handlebar. The operating member is movably coupled to the base member. The operating member includes a first wire attachment part to which a first wire end of a control wire is to be attached.

A bicycle operating device comprises a base member and an operating member. The base member includes a hydraulic-unit attachment part to which a hydraulic unit is to be attached, and a first end portion to be mounted to a handlebar. The operating member is movably coupled to the base member. The operating member includes a first wire attachment part to which a first wire end of a control wire is to be attached.

A handlebar stem, in particular for racing bicycle handlebars, comprises a main element which is connected to a handlebar at a front end. The main element is connected to the handlebar stem tube in the area of a rear end. The handlebar stem tube is connectible to a steerer tube such that it is bendable in the longitudinal direction to improve riding comfort.

A handlebar stem, in particular for racing bicycle handlebars, comprises a main element which is connected to a handlebar at a front end. The main element is connected to the handlebar stem tube in the area of a rear end. The handlebar stem tube is connectible to a steerer tube such that it is bendable in the longitudinal direction to improve riding comfort.

A pedal powered motor-assist golf bag cart/cycle (10) is a personal riding golf cart/cycle adapted to transport a rider and a golf bag (12) for use on a golf course. The cart/cycle (10) is generally symmetrical about a longitudinal plane (11) and includes a frame (14) with a seat (16), a front wheel and steering components (18), a rear wheel (20), an inclined bag support (22), a pedal subassembly (24), a motor assist subassembly (26), and controls (28). It is adapted to be propelled by either the pedal subassembly (24), the motor subassembly (26), or both together.