Joshua Abbott, 24, pleaded guilty in the County Court to negligent driving causing serious injury, failing to stop and render assistance, and driving while disqualified following the crash on March 10, 2019.

Abbott was riding an unregistered black dirt bike on the walking track between Campaspe Esplanade and McKenzie Street in Echuca about 12.15am when he struck the 39-year-old victim.

Investigators determined Abbott would have been travelling somewhere between 41km/h and 50km/h when the man was hit.

The court heard Abbott left the scene of the crash without helping the victim.

Judge Sarah Dawes told the court while Abbott had been "evasive at the outset", his guilty plea showed he was "belatedly remorseful" for the offending.

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Judge Dawes said Abbott was found to have reasonable prospects of rehabilitation, but his moral culpability was high.

She said a substantial term of imprisonment was required.

"Your conduct has caused the victim and his family irrevocable pain," Judge Dawes said. "The community expects those who commit serious driving offences to be punished.

"This is a serious example of significant criminal offending."

Abbott was sentenced to a non-parole period of five years, with 321 days reckoned as already served.

His drivers licence was also disqualified for five years.

Daniel Norris, 34, was also sentenced after pleading guilty to being an accessory after the fact, committing an indictable offence while on bail, and driving while unlicensed.

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The court heard CCTV footage showed Norris moving the dirt bike into his property about 90 minutes after the crash.

The footage showed Norris later that day leaving his home with the bike before returning an hour later without it.

Investigators found the dirt bike partially burnt, painted green, and covered in shrubs in Lake Cooper on July 9, 2019.

The court heard Norris admitted to police he rode the bike away from the property the day after the collision.

Norris' defence counsel Robert Timms told the court Norris was "acting out of loyalty for his friend".

"The misguided loyalty shows a lack of regard for the consequences of your behaviour," Judge Dawes said in her sentencing remarks. "This is a serious example of your ongoing indifference to the criminal process."

Norris was sentenced to 16 months in jail, with a non-parole period of 10 months. He has already served 195 days in prison.

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