Abstract: A bicycle with removable battery for supplying power to electric components, comprising a frame composed of an upper tube connected with a front oblique tube and with a rear vertical tube, which in turn are connected in a lower region so as to form a seat for a bottom bracket and with which a pair of horizontal rear chainstays and a pair of oblique rear chainstays are coupled. The front oblique tube has an axial seat for a removable battery and for accommodating connection and/or electric power supply cables. The axial seat has an axis that passes above the bottom bracket and a lower end that is open and located at the interspace between the pair of horizontal rear chainstays.

Abstract: A bicycle with removable battery for supplying power to electric components, comprising a frame composed of an upper tube connected with a front oblique tube and with a rear vertical tube, which in turn are connected in a lower region so as to form a seat for a bottom bracket and with which a pair of horizontal rear chainstays and a pair of oblique rear chainstays are coupled. The front oblique tube has an axial seat for a removable battery and for accommodating connection and/or electric power supply cables. The axial seat has an axis that passes above the bottom bracket and a lower end that is open and located at the interspace between the pair of horizontal rear chainstays.

Abstract: A device for the selective positioning of the pivot of a wheel of a bicycle comprising a frame composed of a rear stay provided with a first pair of first oblique rear chainstays, each connected, respectively by means of a triangular support, to a second pair of two second horizontal rear chainstays, a derailleur hook being associable with the first and second chainstays. First external seats and second internal seats are provided for the axial and removable positioning respectively of a first external adapter and of a second internal adapter. The first and second adapter have respectively a second hole and a third hole, adapted to determine two different axial arrangements of the derailleur hook and of the pivot with respect to the two first and second chainstays and are adapted to keep the derailleur hook locked in clockwise rotation and free to rotate counterclockwise only through a chosen arc.

Abstract: A free wheel assembly with front clutches comprising a hub sleeve rotatable on a hub pin and a cassette rotatable on the hub pin, a first annular body rotatable on the hub pin and comprising a first crown gear, a second annular body associated with the hub sleeve and comprising a matching second crown gear facing the first crown gear. The first annular body is axially movable relative to the second annular body between a motion transmission configuration and a free wheel configuration and coupling members operate between the first annular body and the cassette. In the free wheel configuration, rotation of the cassette relative to the first annular body forces the coupling members to axially translate the first annular body towards the second annular body, and magnetic members active on the first annular body and opposing the rotation of the first annular body with respect to the hub pin.

Abstract: A spoke attachment flange for a bicycle wheel hub is disclosed. The flange has a plurality of seats for housing enlarged spoke heads. Each spoke seat has an access hole that allows the insertion of the enlarged spoke head and an outlet opening that holds the enlarged spoke head when the spoke is tensioned. The access hole and the outlet opening are spaced circumferentially and connected through a connection channel so that an abutment surface abuts the enlarged head and prevents the enlarged head from exiting through the outlet opening. Methods for manufacturing the hub and mounting a spoke on the flange are also disclosed.

Abstract: A free wheel assembly with front clutches comprising a hub sleeve rotatable on a hub pin and a cassette rotatable on the hub pin, a first annular body rotatable on the hub pin and comprising a first crown gear, a second annular body associated with the hub sleeve and comprising a matching second crown gear facing the first crown gear. The first annular body is axially movable relative to the second annular body between a motion transmission configuration and a free wheel configuration and coupling members operate between the first annular body and the cassette. In the free wheel configuration, rotation of the cassette relative to the first annular body forces the coupling members to axially translate the first annular body towards the second annular body, and magnetic members active on the first annular body and opposing the rotation of the first annular body with respect to the hub pin.

Abstract: A spoke attachment flange for a bicycle wheel hub is disclosed. The flange has a plurality of seats for housing enlarged spoke heads. Each spoke seat has an access hole that allows the insertion of the enlarged spoke head and an outlet opening that holds the enlarged spoke head when the spoke is tensioned. The access hole and the outlet opening are spaced circumferentially and connected through a connection channel so that an abutment surface abuts the enlarged head and prevents the enlarged head from exiting through the outlet opening. Methods for manufacturing the hub and mounting a spoke on the flange are also disclosed.