A human-powered vehicle wheel unit adapted to be attached to a human-powered vehicle hub. The wheel unit includes an accommodation portion and a first engagement portion. The accommodation portion is configured to accommodate at least part of the human-powered vehicle hub. The first engagement portion is provided on the accommodation portion. The first engagement portion is configured to transmit rotation of the human-powered vehicle hub to the accommodation portion through engagement with a second engagement portion provided on a flange projecting from an outer circumferential portion of a hub shell of the human-powered vehicle hub.

A control device of a bicycle hydraulic brake, comprising a cylinder, a tank, a piston slidably mounted in the cylinder to move between at least one first rest position in which the cylinder and the tank are in fluid communication and at least one second position in which the piston interrupts the fluid communication between the cylinder and the tank, a stop device that acts directly or indirectly on the piston. The cylinder and the tank are filled with hydraulic fluid and the stop device can take up a storage and transportation configuration in which it arranges the piston in said at least one second position.

A control device of a bicycle hydraulic brake, comprising a cylinder, a tank, a piston slidably mounted in the cylinder to move between at least one first rest position in which the cylinder and the tank are in fluid communication and at least one second position in which the piston interrupts the fluid communication between the cylinder and the tank, a stop device that acts directly or indirectly on the piston. The cylinder and the tank are filled with hydraulic fluid and the stop device can take up a storage and transportation configuration in which it arranges the piston in said at least one second position.

A cable adjuster is provided for a small vehicle including a bicycle. The cable adjuster includes a base portion and a control structure. The control structure includes a first member, a second member and a clutch mechanism. The first member is configured to be rotatably mounted to the base portion about a first axis. The second member is attached to the first member to rotate relative to the first member. The clutch mechanism is configured to transmit rotational force applied to the second member to the first member. The clutch mechanism is also configured to prevent from transmitting rotational force applied on the first member to the second member.

A brake module is provided. The brake module includes a first brake lever, a second brake lever, a moveable member, a first cable, a second cable, a first brake unit, a second brake unit, a third cable and a fourth cable. The first cable connects the first brake lever and the moveable member. The second cable connects the second brake lever and the moveable member. The third cable connects the first brake unit and the moveable member. The fourth cable connects the second brake unit and the moveable member. When a lever force is applied to the first cable or the second cable, the third cable applies a first brake force to the first brake unit, the fourth cable applies a second brake force to the second brake unit, and the lever force is smaller than the sum of the first brake force and the second brake force.

A brake module is provided. The brake module includes a first brake lever, a second brake lever, a moveable member, a first cable, a second cable, a first brake unit, a second brake unit, a third cable and a fourth cable. The first cable connects the first brake lever and the moveable member. The second cable connects the second brake lever and the moveable member. The third cable connects the first brake unit and the moveable member. The fourth cable connects the second brake unit and the moveable member. When a lever force is applied to the first cable or the second cable, the third cable applies a first brake force to the first brake unit, the fourth cable applies a second brake force to the second brake unit, and the lever force is smaller than the sum of the first brake force and the second brake force.

The present invention refers to a brake assist system (1) for cyclist on a bicycle (100) including a braking system (101) having a braking member (105) capable of exerting a braking force (F.sub.B) on a front wheel (101) of the bicycle (100) by the effect of a force (F.sub.c) applied by the cyclist on a lever (103). The system (1) includes a sensor (2) for measuring the angular speed (.sub.1) of the front wheel (101) of the bicycle (100); an actuator (3) capable of exerting an actuator force (F.sub.A), connectable to said braking system of the bicycle so that the actuator force (F.sub.A) opposes the force (F.sub.c) applied by the cyclist on the lever (103), in order to reduce the braking force (F.sub.B); and a control module (4) configured for receiving, as an input, the signal representative of the angular speed (.sub.1) of the front wheel (101) and for determining from this a deceleration () of the front wheel (101).

The present invention refers to a brake assist system (1) for cyclist on a bicycle (100) including a braking system (101) having a braking member (105) capable of exerting a braking force (F.sub.B) on a front wheel (101) of the bicycle (100) by the effect of a force (F.sub.c) applied by the cyclist on a lever (103). The system (1) includes a sensor (2) for measuring the angular speed (.sub.1) of the front wheel (101) of the bicycle (100); an actuator (3) capable of exerting an actuator force (F.sub.A), connectable to said braking system of the bicycle so that the actuator force (F.sub.A) opposes the force (F.sub.c) applied by the cyclist on the lever (103), in order to reduce the braking force (F.sub.B); and a control module (4) configured for receiving, as an input, the signal representative of the angular speed (.sub.1) of the front wheel (101) and for determining from this a deceleration () of the front wheel (101).

A bicycle brake disc includes: a disc body, having connecting portions extending from an inner periphery of the disc body, and each connecting portion including a connecting hole, and first connecting elements; a rotor carrier having a center hole and carrier arms formed by extending from the center hole to an outer periphery of the rotor carrier, and each carrier arm having a through hole; each heat dissipation baffle has a first and second end portions, and fitting holes, the first and second end portions of each heat dissipation baffle respectively clamped between two adjacent connecting portions and two adjacent carrier arms, so that the connecting hole, the fitting hole, and the through hole are sequentially aligned; and the first connecting element passing through the holes to fixedly connect the disc body, the heat dissipation baffles, and the rotor carrier.

A bicycle brake disc includes: a disc body, having connecting portions extending from an inner periphery of the disc body, and each connecting portion including a connecting hole, and first connecting elements; a rotor carrier having a center hole and carrier arms formed by extending from the center hole to an outer periphery of the rotor carrier, and each carrier arm having a through hole; each heat dissipation baffle has a first and second end portions, and fitting holes, the first and second end portions of each heat dissipation baffle respectively clamped between two adjacent connecting portions and two adjacent carrier arms, so that the connecting hole, the fitting hole, and the through hole are sequentially aligned; and the first connecting element passing through the holes to fixedly connect the disc body, the heat dissipation baffles, and the rotor carrier.