Abstract: Bicycle rear derailleur device (1) comprising a chain guide assembly (15) made up of two parts: a guiding cage (28) and a tension cage (32). It also comprises a movable member (18) coupled to a base member (10) via a linking member (13) to align the chain guide assembly (15) with the different sprockets. Said tension cage (32) carries a tension pulley (11), is pivotably coupled to the movable member (18) and is biased by a main spring or biasing member (17). The guiding cage (28) carrying a guiding pulley (14), and the tension cage (32) are both configured to move either jointly or independently of each other, such the distance between both pulleys (14, 11) is fixed or free respectively, varying as a consequence the chain tension. To do so, the guiding cage (28) is pivotally coupled to the tension cage (32) comprising between them coupling means (16) that selectively and reversibly make both cages united or not.

Abstract: Bicycle rear derailleur device (1) comprising a chain guide assembly (15) made up of two parts: a guiding cage (28) and a tension cage (32). It also comprises a movable member (18) coupled to a base member (10) via a linking member (13) to align the chain guide assembly (15) with the different sprockets. Said tension cage (32) carries a tension pulley (11), is pivotably coupled to the movable member (18) and is biased by a main spring or biasing member (17). The guiding cage (28) carrying a guiding pulley (14), and the tension cage (32) are both configured to move either jointly or independently of each other, such the distance between both pulleys (14, 11) is fixed or free respectively, varying as a consequence the chain tension. To do so, the guiding cage (28) is pivotally coupled to the tension cage (32) comprising between them coupling means (16) that selectively and reversibly make both cages united or not.

Abstract: A torque and power measuring device corresponding to the non-drive side cyclist leg, comprising a hollow shaft connecting the two bicycle crank arms with strain sensors arranged in the shaft surface. These sensors are connected to an electronic control unit housed inside the shaft, to which are also connected other different sensors to measure a plurality of interesting quantities (pedaling cadence, crank arm angular position . . . ). This electronic control unit picks the sensor signals up, stores them and performs pre-programmed software operations to later wirelessly output the result signals towards a receiving device for analysis and/or storage them, by means of an antenna located outside the shaft and anchored to the outer surface of the jointed crank arm with the shaft.

Abstract: Bicycle single-acted gear-shifting device (12), comprising one front or rear derailleur (10, 20) coupling a ratchet indexing mechanism (13) acted by only one single-acting slave-connector (110, 120) attached to said ratchet indexing mechanism (13), operated by a unidirectional operator mechanism (15) with optional multiple unidirectional handle operator units (30). Said ratchet indexing mechanism (13) removably defines and holds a plurality of predetermined working stable positions of the derailleur's cage-plate (102,202) for each gearshift, and it comprises a ratchet-gear (1) with a pawls' system.

Abstract: A bicycle dual control device hydraulically operated, so that using one single device the cyclist may operate, by applying different hand pressures or taps from the handlebar, two unidirectional control mechanisms, preferably a brake and a bicycle gear-shifting mechanisms. The control device comprises two unidirectional control units within a single lever or handgrip attached to the handlebar, wherein each one of them comprises an acting member, an operating member connected to a control circuit and a coupling element which links the two previous members. In a preferred embodiment of the invention, the operating member related to the gear shifting is hydraulic and comprises a piston and a cylinder mounted integrated inside the brake acting member.

Abstract: A torque and power measuring device corresponding to the non-drive side cyclist leg, comprising a hollow shaft connecting the two bicycle crank arms with strain sensors arranged in the shaft surface. These sensors are connected to an electronic control unit housed inside the shaft, to which are also connected other different sensors to measure a plurality of interesting quantities (pedaling cadence, crank arm angular position . . . ). This electronic control unit picks the sensor signals up, stores them and performs pre-programmed software operations to later wirelessly output the result signals towards a receiving device for analysis and/or storage them, by means of an antenna located outside the shaft and anchored to the outer surface of the jointed crank arm with the shaft.

Abstract: A bicycle dual control device hydraulically operated, so that using one single device the cyclist may operate, by applying different hand pressures or taps from the handlebar, two unidirectional control mechanisms, preferably a brake and a bicycle gear-shifting mechanisms. The control device comprises two unidirectional control units within a single lever or handgrip attached to the handlebar, wherein each one of them comprises an acting member, an operating member connected to a control circuit and a coupling element which links the two previous members. In a preferred embodiment of the invention, the operating member related to the gear shifting is hydraulic and comprises a piston and a cylinder mounted integrated inside the brake acting member.

Abstract: Bicycle single-acted gear-shifting device (12), comprising one front or rear derailleur (10, 20) coupling a ratchet indexing mechanism (13) acted by only one single-acting slave-connector (110, 120) attached to said ratchet indexing mechanism (13), operated by a unidirectional operator mechanism (15) with optional multiple unidirectional handle operator units (30). Said ratchet indexing mechanism (13) removably defines and holds a plurality of predetermined working stable positions of the derailleur's cage-plate (102,202) for each gearshift, and it comprises a ratchet-gear (1) with a pawls' system.

Abstract: Bicycle single-acted gear-shifting device (12), comprising one front or rear derailleur (10, 20) coupling a ratchet indexing mechanism (13) acted by only one single-acting slave-connector (110, 120) attached to said ratchet indexing mechanism (13), operated by a unidirectional operator mechanism (15) with optional multiple unidirectional handle operator units (30). Said ratchet indexing mechanism (13) removably defines and holds a plurality of predetermined working stable positions of the derailleur's cage-plate (102,202) for each gearshift, and it comprises a ratchet-gear (1) with a pawls' system.

Abstract: Bicycle single-acted gear-shifting device (12), comprising one front or rear derailleur (10, 20) coupling a ratchet indexing mechanism (13) acted by only one single-acting slave-connector (110, 120) attached to said ratchet indexing mechanism (13), operated by a unidirectional operator mechanism (15) with optional multiple unidirectional handle operator units (30). Said ratchet indexing mechanism (13) removably defines and holds a plurality of predetermined working stable positions of the derailleur's cage-plate (102,202) for each gearshift, and it comprises a ratchet-gear (1) with a pawls' system.