An inquest on Monday heard Hall was wearing dark clothing, with limited reflective qualities.
Bobb told police he thought at first he had hit a kangaroo and had suffered significant shock and distress after the incident.
Police re-creations showed the bike was “virtually indistinguishable” in the dark, with the rear red light on Hall’s bicycle difficult to see.
There was no evidence Bobb had been speeding when he hit Hall, who was riding in the verge on the correct side of the road.
No charges have been laid.