A method for making the composite material wheel rim includes the steps of: configuring a plurality of inner lining chunks individually to the desired position where the spokes are to be mounted to allow the inner lining chunks to be integrated with an inner annular portion of the wheel rim, next, integrating the formed inner annular portion with an outer annular portion of the wheel rim to form a semi-finished wheel rim, and then, creating the requested threaded holes for connecting the spokes in the inner lining chunks of the inner surface of the semi-finished wheel rim subject to the requested amount and angles of the spokes. By the present method, the semi-finished wheel rim allows drilled, threaded holes subject to needs to fit different types of wheel hub units to increase the yield rate and reduce the inventory of the wheel rims.

A cassette for a bicycle may include a plurality of sprocket portions joined together into a single unit. The cassette may include a cavity formed in the large end of the cassette. A related manufacturing method may include joining a first generally planar sprocket portion having a plurality of connector portions extending transverse to the plane of the first sprocket portion, to a second generally planar sprocket portion, e.g., by fusing at least one of the connector portions to the second sprocket portion.

A method and a device are provided for manufacturing spokes from a wire material, in particular for at least partially muscle-powered two-wheeled vehicles. The spokes include a spoke shaft having at least two shaft sections. The shaft sections differ in at least one cross-section. For shaping the cross-sections, the wire material is reshaped at least in sections by means of a shaping tool. The relative position of the wire material relative to the shaping tool is varied in the axial direction during reshaping. For shaping the cross-sections in the two shaft sections the relative position of the wire material relative to the shaping tool is varied by way of different positioning movements.

A spoke including a metallic core covered, at least in its central portion, with a sheath of composite material comprised of an assembly of fibers embedded in a matrix, the core including an end portion adapted to be attached to the rim or the hub of a wheel, and a main body whose cross-sectional surface area is between 30% and 50% or, in a particular embodiment, between 35% and 45%, of the cross-sectional surface area of the aforementioned end portion. Furthermore, in the area of the main body, the sheath has a cross section between 150% and 500% or, in a particular embodiment, between 150% and 350%, of the cross section of the metallic core in the same area. The metal core includes two mechanical anchoring zones, positioned in the vicinity of its ends, on both sides of the main body.