Brenton Curtis was cycling near his home in Adelaide's north, as he did every Sunday, when he was fatally struck by a speeding car.

Key points: Driver Garang Luk killed cyclist Brenton Curtis in a crash at Salisbury Park in October 2017

Driver Garang Luk killed cyclist Brenton Curtis in a crash at Salisbury Park in October 2017 Luk was drunk, speeding and his licence was suspended

Luk was drunk, speeding and his licence was suspended He was sentenced today to at least one year and eight months' prison

Garang Akech Luk, 19, had a blood-alcohol level more than twice the legal limit when he caused the crash on Saints Road at Salisbury Park on October 20 last year.

Mr Curtis, 62, died in hospital from his injuries eight days later.

Luk pleaded guilty to aggravated causing death by dangerous driving and was today sentenced to two years and one month in prison.

District Court Judge Jack Costello imposed a non-parole period of one year and eight months, which could see Luk released from prison in August 2020.

Outside court, Mr Curtis's son Ashley expressed his disappointment in the sentence, saying Luk had done everything wrong on the morning of the crash.

"What more does an offender have to do to get a decent sentence?" he asked.

Police at the scene of the crash at Salisbury Park last October. ( ABC News )

The court heard Luk had been out all night and was driving a friend home when he caused the crash.

It heard he was travelling between 60 and 73 kilometres per hour in a 50kph zone and knew that his driver's licence was suspended after it was stolen and presented to police by a drunk driver in a separate incident.

Mr Curtis's wife, Wendy, cried as the sentenced was handed down.

"I've got five grandsons who are all going to be drivers one day, how do you teach them to do the right thing when this is what happens?" she said outside court.

Mrs Curtis said her husband was a "very gentle, kind man, who would do anything for anybody".

"For 20 years he had gone on a bike ride every Sunday morning, it was only a few minutes from home … that was his only pleasure that he had for himself, everything else he did was for our family," she said.

Family questions 'caring' accused's remorse

Judge Costello said he accepted that Luk was truly remorseful for his actions based on an apology his lawyer had read to the court on his behalf.

But Mrs Curtis said she did not accept the apology.

"The first time we heard any remorse was when his lawyer read out a paragraph of remorse in court," she said.

"He had shown no remorse, he had gone off to play basketball interstate.

"How do you kill somebody and then go off to play basketball?"

Police speak to Luk at the scene of the crash. ( ABC News )

Judge Costello said Luk came to Australia in 2006 as a Sudanese refugee and had been in constant employment, mostly as a gyprock installer, since graduating from Modbury High School.

"I have also taken into account the references and testimonials of various members of the Sudanese community, your church and your employer, which collectively describe you as a 'caring, loving and respectful young man' and a hard-working member of the wider community," he said.

"I am however equally mindful of the devastating impact that your actions … to drive at speed with excess alcohol in your system have had and will continue to have on the lives of Mr Curtis's family and friends."

The court heard because Luk was 18 years old at the time of the crash and a first-time offender, a shorter sentence could be justified by placing greater weight on rehabilitation.