Abstract: A steering tube clamp and stem assembly for a bicycle or other cycle in which the steering tube clamping parts are concealed inside a stem tube which extends away from the rider. The clamping assembly employs an axially extending cut and intersecting arcuate cuts in a wall of a sleeve which connects to the steering tube and a pair of spaced lugs which are integrally formed with the steering tube sleeve and extend in parallel into the stem tube. A clamping screw head is accessible through an aperture in the wall of the stem tube. The stem tube is welded to the steering tube sleeve and to two additional outside lugs which parallel the concealed lugs to minimize stresses in a welded connection of the stem tube to the sleeve.

Abstract: Lightweight wheel rims for bicycles are formed by pin joints wherein a pin traverses the joint connecting a pair of adjacent ends of a rim member and extend into passages in the rim member on opposite sides of the joint. The improved joint is formed by resilient arms on the pin (or passage) that are resiliently bent or bowed between a pair of spaced contact areas when the pin is forced into the passage and apply pressure resiliently between the pin and the passage wall so the force are applied to inside walls of the passage so that more deflection occurs in the arms as opposed to the rim. In another embodiment of the present invention circumferentially spaced vents are formed leading from the circumferential pin receiving passages to the spoke holes.