racer
Refers to a person who races, or a vehicle designed for racing. Common in contexts like motorsports, cycling, and skiing.
彼はプロのレーサーを目指している。
He is aiming to become a professional racer.
この自転車は本格的なレーサー仕様だ。
This bicycle is a full-fledged racer model.
He dreams of becoming a racer in the future.
She is active and successful as an F1 racer.
track bicycle; track racer
drag racer