Abstract: A combined gear change and brake control unit in a support body which can be fastened to a bicycle handlebar. The brake control lever and gear change control unit are carried by a support body. The gear change unit has a rotatable shaft attached to a pulley with an end portion of a derailler control cable wound thereon. The shaft is subject to a return torque that turns the shaft to release the cable. The unit has a gear change lever that controls the rotation of the shaft in a direction that winds the cable onto the pulley and a cable release button. The gear change control unit includes a ratchet mechanism that leaves the shaft free to turn by a predetermined amount in the release direction of the cable.

Abstract: Rocker arm assembly for the rear derailleur of a bicycle, comprising an outer plate (12) carrying a pivot pin (32), an inner plate (10) and a pair of idle transmission wheels (14) arranged between the outer plate (12) and the inner plate (10). The inner plate is made of metallic material and the outer plate is made of a structural fiber fabric incorporated in a thermoplastic material matrix.

Abstract: A method for electronically servo-assisting a bicycle gearshift, including the steps of: a) driving an actuator of a bicycle gearshift to displace a chain of the gearshift in an axial direction with respect to a gearshift group comprising at least two sprockets; b) receiving information on the desired alignment between the chain and a predetermined sprocket of the gearshift group; and c) setting a biunique correspondence between the physical position of the actuator at step b) and a logic value associated with the gear ratio relative to the predetermined sprocket.

Abstract: A method for electronically servo-assisting a bicycle gearshift to allow compensation for misalignments between the chain of a bicycle gearshift and one or more sprockets of the gearshift, the method including the steps of: driving an actuator of a bicycle gearshift to displace a chain of the gearshift in an axial direction with respect to a gearshift group comprising at least two sprockets; receiving information on the desired alignment between the chain and a predetermined sprocket of the gearshift group; and setting an adjustment variable, of a logic value associated with the gear ratio relative to the predetermined sprocket, to a value corresponding to the displacement carried out in the step of driving the actuator.

Abstract: A combined gear change and brake control unit for a bicycle is provided. The unit comprises a support body connected to a brake control lever pivoting around a first axis and a gear change control unit connected to the support body. This control unit comprises a gear change lever pivoting on a second axis, orthogonal with respect to the first axis, for shifting the gear. The gear change lever is arranged immediately behind the brake control lever and is free to oscillate in the same direction as the latter lever to prevent obstructing the brake control movement.

Abstract: An electric control device for a motor-driven derailleur for bicycles includes a supporting body fixed to a handlebar of a bicycle, a supporting body, a pair of electric switches to control the gear change carried by the supporting body, and a gear change lever that can be manually operated to control a first of said switches. The gear change lever comprises a first part connected to the supporting body so as to consent shift of the gear change lever between a position at rest and an operating position, and a second part hinged to the first part.

Abstract: Rocker arm assembly for the rear derailleur of a bicycle, comprising an outer plate (12) carrying a pivot pin (32), an inner plate (10) and a pair of idle transmission wheels (14) arranged between the outer plate (12) and the inner plate (10). The inner plate is made of metallic material and the outer plate is made of a structural fibre fabric incorporated in a thermoplastic material matrix.

Abstract: Electrically powered actuator, particularly for controlling a bicycle component, for example a front or rear bicycle derailleur, comprising an electrical motor with an output shaft, a driven shaft rotationally mounted in the casing of the actuator and connected to the output shaft of the electrical motor by means of a reducer, and a angular position sensor of said driven shaft, incorporated inside said actuator casing, consisting of a rotary potentiometer.

Abstract: A clamp for fixing a seat post to a seat tube provided with a slit in a longitudinal vertical plane. The clamp has a pair of deformable branches defining a through hole having a cylindrical inner surface; a slit between the elastically deformable branches; and a tightening screw that draws up the two facing surfaces and reduces the diameter of the cylindrical inner surface.

Abstract: A gear change control device for a bicycle having a handlebar with straight end portions, comprises a first control lever with a control portion arranged behind the end portion of the handlebar, with reference to the longitudinal direction of the bicycle, and extending at least partially at a position lying substantially at the same level of the handlebar, with respect to a vertical direction in the condition of use of the handlebar and a second control lever with a control portion arranged at the same level, below or upper the control portion of the first control lever.

Abstract: Electrically powered actuator, particularly for controlling a bicycle component, for example a front or rear bicycle derailleur, comprising an electrical motor with an output shaft, a driven shaft rotationally mounted in the casing of the actuator and connected to the output shaft of the electrical motor by means of a reducer, and a angular position sensor of said driven shaft, incorporated inside said actuator casing, consisting of a rotary potentiometer.

Abstract: A process for the production of a crank lever for a bicycle, comprising the steps of:

Abstract: Electric control device for a motor-driven derailleur for bicycles, comprising:

Abstract: Combined gear change and brake control unit for a bicycle comprising, a support body (12) which can be fastened to the handlebar of the bicycle, a brake control lever (14) pivotally mounted on the support body (12) around a first axis (16), a gear change control unit (18) carried by the support body (12), comprising a shaft (20) turning around a second axis (22), either orthogonal or substantially orthogonal to said first axis (16), in which the shaft (20) carries a pulley (24) on which an end portion of a control cable of a derailleur is destined to be wound, and in which said shaft (20) is subject to a return torque tending to turn the shaft towards a direction (28) in which the cable is released, a gear change lever (30) arranged behind the brake control lever (14) for controlling the rotation of said shaft (20) in a direction of most winding of the cable (26) and a button lever (32) arranged on a side of said support body (12) for controlling the rotation of said shaft (20) in the release direction of the

Abstract: Combined gear change and brake control unit for a bicycle comprising,

Abstract: Rocker arm assembly for the rear derailleur of a bicycle, comprising an outer plate (12) carrying a pivot pin (32), an inner plate (10) and a pair of idle transmission wheels (14) arranged between the outer plate (12) and the inner plate (10). The inner plate is made of metallic material and the outer plate is made of a structural fibre fabric incorporated in a thermoplastic material matrix.

Abstract: A clamp for fixing a seat post (14) to a seat tube (12) provided with a slit (18) set in a longitudinal vertical plane (A).