The invention relates to a drive wheel for a bike, comprising a rim which is fastened to a hub by means of a plurality of spokes, wherein the spokes are made of reinforcing fibers embedded in resin, the reinforcing fibers of a spoke extending from a first fastening portion at the rim to a second fastening portion offset against the former in the circumferential direction and being guided along the outside of the hub, wherein the hub takes a shape polygonal in cross-section on the outside to which an axial side of each spoke is adjacent. The invention further relates to a bicycle comprising said drive wheel configured as a rear wheel.

Wheel hub arrangement for a drive with rotated drum that has a stationary shaft (13); a hollow drum (19, 20) arranged by bearings around it, a wheel drum (32) that includes a hub of the driven wheel, and freewheels, inner sleeve (21, 22) which are arranged around the stationary shaft (13) by bearings, and placed partially in the cavity of the drum (19, 20). The wheel hub arrangement for a drive with rotated drum for bicycles, street stepper vehicles, wheelchairs and tricycles.

A hub and a wheel having such a hub. The hub includes a hub shell and an axle to rotatably receive the hub shell. The hub shell is provided with circumferential hub flanges for accommodation and defined orientation of a plurality of spokes. Each of the spokes includes a spoke body and a spoke head. The hub flanges include a plurality of accommodation sections to receive one spoke head each. The accommodation sections are axially disposed on the hub flanges. Each of the accommodation sections has one spoke feed-through assigned to it, through which an accommodated spoke can be guided out of the accommodation section. Two spoke feed-throughs each are provided with one joint and circumferentially closed outlet opening in the hub flanges. The hub flanges enclose the outlet opening integrally.

A hub and a wheel having such a hub are provided. The hub includes a hub shell and an axle to rotatably receive the hub shell. The hub shell is provided with circumferential hub flanges serving for accommodation and defined orientation of a plurality of spokes. Each of the spokes has a spoke body and a spoke head. The hub flanges include a plurality of accommodation sections receiving a spoke head each. Each of the accommodation sections has one spoke feed-through assigned to it through which an accommodated spoke can be guided out of the accommodation section. The hub flange includes two different types of accommodation sections. A first type includes a circumferentially closed spoke feed-through and a second type, a circumferentially opened spoke feed-through.

A bicycle transmission includes an axle, an input component, a power transmission mechanism, a shift mechanism and an output component. The input component receives manually applied rotational force. The output component is rotatably supported by the axle. The power transmission mechanism transmits the rotational force of the input component to the output component through one of a plurality of power transmission paths. The shift mechanism includes a shift input member, a shift control member, a first saver spring and a second saver spring. The shift input member is settable in a plurality of rotational positions. The shift control member rotates in conjunction with movement of the shift input member to select one of the power transmission paths. In the shift mechanism, as the shift input member rotates in the first direction, the shift control member receives the rotational force applied in a first direction through the first saver spring.

A sprag one-way clutch (OWC) used within a cassette driver of the rear hub assembly of a bicycle. The new cassette driver delivers improved performance the reduction of rotation of the crank arm required before engagement within the cassette driver when the cyclist applies force to the pedals. Additionally, the sprag clutch smooth engagement minimizes friction loss during free-wheeling, therefore increasing drivetrain efficiency. These enhancements provide both safety and performance benefits by giving the cyclist greater control in moving between pedaling and free-wheeling. The current cassette driver design utilizes a sprag OWC for engagement without any modifications to current bicycle designs. A sprag cage may be used to provide a framework to support and properly position the sprags.

The invention relates to a wheel for a powered two-wheeler, in particular a motorcycle or a motor scooter, that is at least sectionally made of a fiber-reinforced plastic material. A hub area (12) of the wheel (IO) is provided with two rigid, self-supporting, metal inserts (18, 20), which are arranged on axially opposite sides of the hub area (12), and which in an axial and radial direction (A, r) are connected to one another in a form-fit manner.

Forward movement of a bicycle results when force is transfer from the chain or belt to a sprocket on a cassette. The cassette is splined to the cassette driver and causes the wheel of the bike to rotate when torque is applied from the cassette to the cassette driver. The cassette driver is typically made of a strong hard material such as steel to withstand the forces in parted thereon by the cassette. The present disclosure provide a hub configuration and method that enables the cassette driver to be made with construction of a lighter weight material such as aluminum yet still withstand the toque applied thereto.

Forward movement of a bicycle results when force is transfer from the chain or belt to a sprocket on a cassette. The cassette is splined to the cassette driver and causes the wheel of the bike to rotate when torque is applied from the cassette to the cassette driver. The cassette driver is typically made of a strong hard material such as steel to withstand the forces in parted thereon by the cassette. The present disclosure provide a hub configuration and method that enables the cassette driver to be made with construction of a lighter weight material such as aluminum yet still withstand the toque applied thereto.