While my father is working with his bike, I manage to take a few researches about what we do with his bike. Actually, many of its parts are seemingly deteriorating and are not even reliable at all. Just like the fork which is almost covered with rust. But he said that it is chrome-plated and so maybe the plating is the only one which was affected by the rust. Well, sooner we will disassemble this bike and purchase the necessary parts to fix it!