自行车部件，自行车轴构件，自行车后链轮总成，及自行车杆构件;BICYCLE COMPONENT, BICYCLE SHAFT MEMBER, BICYCLE REAR SPROCKET ASSEMBLY, AND BICYCLE LEVER MEMBER

摘要

本发明提供一种可同时实现接合强度之提高、轻量化、及外观之改善之自行车部件。;本自行车部件12包括：第1构件15；及第2构件16，其与第1构件15对向地配置。于第1构件15与第2构件16之间形成有内部空间S1。第1构件15与第2构件16系藉由扩散接合而接合。;[MEANS OF ACHIEVING THE OBJECT] The present bicycle component 12 comprises a first member 15 and second member 16 that is disposed to face the first member 15. An internal space S1 is formed between the first member 15 and the second member 16. The first member 15 and the second member 16 are joined to each other by diffusion bonding.