To overtake a bicycle, it is possible to enter the opposite lane **if necessary** and as long as no traffic regulations are violated. This is because, when overtaking, a **minimum distance of one and a half meters** must be maintained from the bicycle. To achieve this safety distance, it is often necessary to move to the left lane.

However, there are situations where overtaking is **prohibited**, such as on curves with poor visibility, hill crests, or when weather conditions make visibility difficult. It is also prohibited to overtake if there is a risk of endangering cyclists traveling in the opposite lane.

Therefore, it is possible to enter the opposite lane when overtaking a bicycle, as long as safety regulations are followed and other road users are not endangered.