Question

Why do bicycles present a challenge to other drivers on the roadway​

Answer 1

If you have a bicycle in front of you on the road while driving, passing the bike can be very difficult. Most likely the bike is going slow and your not going to want to sit behind it but passing it can be dangerous.

Answer 2

Fear of hitting the cyclist

Step-by-step explanation:

When a cyclist is on the road most drivers try to be more aware of their driving so as to ensure they don't hit the cyclist.