With the official start of the bicycle club, the principal orders them to produce results within three months, or the school won't recognize their club. Hiromi and her friends wonder what they can do to produce results. They decide to start by learning about bicycles and getting their own, but...
That's why people prefer 
materials like carbon.
.لهذا السّبب يفضّل النّاس موادًّا كالكربون
Deshalb ist Carbon
ein bevorzugter Werkstoff.
Por eso muchos prefieren
materiales como el carbono.
Por eso muchos prefieren
materiales como el carbono.
Donc les cadres en carbone
sont très demandés.
Per questo si preferisce il carbonio.
É por isso que as pessoas preferem
 materiais como o carbono.