A bicycle of high competition with the connection tube saddle - case of pedalier of circular form

摘要

The frame has a horizontal tube (1) and a front tube (2) and a connection (3) between the saddle (4) and pedal shaft housing. The normal tube between the saddle support joining the horizontal tube to the pedal shaft housing is replaced by a connection. The connection consists of a circular tube (7), which is parallel to the rear wheel (8) oVer about 90 degrees and adjacent to it. The tube is fixed to the pedal shaft housing and to the rear fork (9) at the normal stay level. The fork is fixed to a small tube (10), supporting the saddle tube (11).