Edward Sapir and later Benjamin Lee Worf espoused that the language a human speaks can have an effect on the way their mind processes mental functions such as memory, thought and perception.
This called the <em>Sapir–Whorf hypothesis</em> and Linguistic Determinism is the form of it that explains why Chinese speakers may be more likely to think about time on a vertical or a horizontal plane.
I'm not sure if that's a part of a bike, but I would say oval since the circle is an oval shape. Correct me if I'm wrong, but I hope this helps and good luck! :D