A bicycle having a bicycle frame comprising a head tube, a top tube, a down tube, a bottom bracket and at least one chain stay. A single, tubular member has a first portion that forms the top tube and extends downwardly from the head tube toward the bottom bracket and a unitary second portion that extends upwardly from the bottom bracket to form the seat tube. A plurality of struts extends between the tubular member and the down tube, bottom bracket or at least one chain stay. In some arrangements, the down tube and the at least one chain stay are the only frame members that contact the bottom bracket. In some arrangements, the top tube contacts the down tube at an intermediate portion thereof.
Step-through bicycle frame
19.07.2016
Patent
Elektronische Ressource
Englisch
IPC: | B62K Fahrräder , CYCLES |
BICYCLE FRAME, BICYCLE AND METHOD OF MANUFACTURING BICYCLE FRAME
Europäisches Patentamt | 2020
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