What lane position is recommended before starting to pass another vehicle?

Before starting to pass another vehicle, it is recommended to be in the left portion of the lane. This positioning allows the rider to have a better view of oncoming traffic and the road ahead. By being in the left side, you increase your visibility to other vehicles and ensure a safer distance when maneuvering around the vehicle you intend to pass. Additionally, positioning yourself in the left portion of the lane helps you to gauge the distance and speed of oncoming vehicles, which is crucial for making safe decisions when overtaking.

This is important because passing requires careful judgment of the traffic conditions; being on the left side gives you a clearer line of sight and reduces the risk of being caught in the blind spot of the vehicle being passed. It helps in maintaining a safe escape route if necessary. The other lane positions may not provide the same level of safety and visibility needed for a successful and safe maneuver.