Abstract: A wheel for a racing bicycle including a rim with a rim body having a rim well and lateral rim flanks provided with rim flanges, the rim flanges showing bulges protruding inwardly, each defining an undercut at the pertaining rim flange. A tire with two circumferential tire beads is accommodated on the rim body between the rim flanges, the tire beads bearing against the inside of the rim flanges and entering the undercut at the bulges of the rim flanges. A tire retaining device is included which is disposed in the internal space between the tire and the rim well. The tire retaining device includes an insert member having a hollow space that extends between the tire beads and contains a radially outwardly peripheral wall and a radially inwardly peripheral wall, wherein at least the radially inwardly peripheral wall extends continuously across an inner axial width of the insert member.

Abstract: A wheel for a racing bicycle including a rim with a rim body having a rim well and lateral rim flanks provided with rim flanges, the rim flanges showing bulges protruding inwardly, each defining an undercut at the pertaining rim flange. A tire with two circumferential tire beads is accommodated on the rim body between the rim flanges, the tire beads bearing against the inside of the rim flanges and entering the undercut at the bulges of the rim flanges. A tire retaining device is included which is disposed in the internal space between the tire and the rim well. The tire retaining device includes an insert member having a hollow space that extends between the tire beads and contains a radially outwardly peripheral wall and a radially inwardly peripheral wall, wherein at least the radially inwardly peripheral wall extends continuously across an inner axial width of the insert member.

Abstract: A rim for a mountain bike is provided, including a rim body having a rim well, a rim base and two lateral rim flanks and a hollow space device with a hollow space. A width of the rim body is larger than 30 mm. The hollow space device of the rim body is radially outwardly limited by the rim well and laterally and radially inwardly, by an inner enclosing wall including the rim base and the rim flanks. The radially inwardly enclosing wall forms an internal wall that is substantially closed, apart from the nipple accommodations. The rim well includes a plurality of recesses having a surface proportion of at least 10% of a surface of the rim well.

Abstract: A rim for a mountain bike is provided, including a rim body having a rim well, a rim base and two lateral rim flanks and a hollow space device with a hollow space. A width of the rim body is larger than 30 mm. The hollow space device of the rim body is radially outwardly limited by the rim well and laterally and radially inwardly, by an inner enclosing wall including the rim base and the rim flanks. The radially inwardly enclosing wall forms an internal wall that is substantially closed, apart from the nipple accommodations. The rim well includes a plurality of recesses having a surface proportion of at least 10% of a surface of the rim well.

Abstract: A rim for a bicycle having a rim body including a rim well and a rim base and rim flanks connecting the rim base and the rim well wherein the rim flanks and the rim base consist of a fibrous composite material. A minimum wall thickness of the rim flanks is thinner in one radial region than in another radial region. The rim body is bulbous in cross-section. A maximum height from the rim base to the rim well is less than 1.5 times and in particular less than 1.2 times the maximum width.

Abstract: A rim for a bicycle having a rim body including a rim well and a rim base and rim flanks connecting the rim base and the rim well wherein the rim flanks and the rim base consist of a fibrous composite material. A minimum wall thickness of the rim flanks is thinner in one radial region than in another radial region. The rim body is bulbous in cross-section. A maximum height from the rim base to the rim well is less than 1.5 times and in particular less than 1.2 times the maximum width.

Abstract: The timepiece includes a time keeper in order to display hours and minutes by means of hands (4, 5) surmounting a dial (80) surrounded by a bezel (7) and a receiver capable of receiving messages for seeking persons issuing from at least two calling numbers. The calling numbers (81) are inscribed in plain language or in a coded form on the bezel and means are activated in order that, upon reception of a message, such is stored and the hands (4,5) cease their time-indicating function in order to come into position to show the calling number which emits the message by superposing themselves (4', 5') thereover.