Patent ID: 7654547

Claim:
A cycle headset for connecting a fork pivoting tube ( 1 ) to a steering tube ( 2 ) that forms part of a cycle frame, comprising: a fork pivoting tube ( 1 ) having an outside face; a lower roller bearing ( 3 ); an upper roller bearing ( 4 ) configured to provide for rotation of the pivoting tube ( 1 ) relative to the steering tube ( 2 ); and means ( 9 , 10 ) of axially locking the lower and upper roller bearings ( 3 , 4 ) against a lower or upper end of the steering tube ( 2 ), wherein said means of axial locking comprise a first element of axial locking that consists of a circular groove ( 9 ), said circular groove ( 9 ) provided on the outside face of the pivoting tube ( 1 ) and configured to interface with a second element of axial locking that consists of a rib ( 10 ) of essentially matching shape to the circular groove ( 9 ) and provided on an elastically deformable annular element ( 11 , 32 ) in a direction perpendicular to an axis of the pivoting tube and provided above the upper roller bearing ( 4 ) so as to exert a thrust against the upper roller bearing ( 4 ).