A cyclist had been hit and killed and the driver failed to stop.

"That cyclist was my father. My world instantly broke," she told journalists on Tuesday.

David Thomson, 60, was riding his bike on La Trobe Street at Delacombe, near Ballarat, when he was hit by a silver sedan that did not stop to help him on October 31.

Police are still trying to find the driver, and Mr Thomson's family begged for anyone with information to come forward.

"Dad had been tragically killed on the way to work, and what's worse, the coward didn't even stop or break afterwards," Senior Constable Thomson said.

"I had unknowingly attended my dad's own crime scene. Please imagine that for a second."

Mr Thomson had increased his walking and cycling to improve his fitness so he could keep playing cricket and keep up with his young grandchildren.

"Dad's the reason I joined the job, dad's absolutely everything to me. I called dad every Sunday we have a chat. He's just is, is just the world to us," Sen Const Thomson said.

Her brother Dylan told reporters their father was a well-loved member of the community.

"He was going back to play competitive cricket again and trying to just do the right thing for himself and get on the bike and ride to work," Dylan Thomson said.

Investigators are keen to speak to any witnesses or anyone that may have been in the area at the time of the collision with dash-cam footage.

Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a report online at www.crimestoppersvic.com.au

Australian Associated Press