A bicycle frame includes substantially rigid front and rear triangles that are pivotally connected to one another by a pair of pivoting linkages. The lamp assembly box has a face plate and a front door pivotably moveable between an open and a closed position and a lamp assembly. Also disclosed are axially-extended loop forms, and associated intravascular devices. In another exemplary embodiment, the system and method have the capability of backing up the process to transmit previously skipped packets, if time allows. Also provided herein are vectors and host cells comprising those nucleic acid sequences, chimeric polypeptide molecules comprising the polypeptides of the present invention fused to heterologous polypeptide sequences, antibodies which bind to the polypeptides of the present invention and to methods for producing the polypeptides of the present invention. Slits 51 and 52 formed in front of the heat transfer coil 4 and slits 55 and 56 formed behind the heat transfer coil are arranged so as to provide a mutually different length among adjoining partitioned slits in the vertical direction, as well as a mutually different length between directly opposite partitioned slits in the horizontal direction.