What does it mean to step on it by bike?

It refers to checking and familiarizing with the track or route before the event to determine the time and route of the competition and understand the obstacles and risks that may be encountered. This is usually an act of preparing for competitions and activities to ensure the safety of contestants and spectators and the smooth progress of activities. Cycling can be said to be one of the important processes of competitive activities such as marathon and road cycling. By improvising, players can adapt to the track environment to the greatest extent, thus improving their performance.