A 25-year-old man has been charged with murder within 48 hours of a hit-and-run incident in which he allegedly struck and killed a cyclist in the NSW Riverina area.

Jonwa Rowe was allegedly behind the wheel of a Toyota Hilux dual cab utility shortly after 2am on Sunday, when it collided with a 33-year-old male cyclist on Currawang Avenue, Leeton.

Stephen O'Grady, 33, died after he was hit by a car in the early hours of Sunday morning. Facebook

It is alleged Mr Rowe failed to stop after the collision and the cyclist, identified by police as Stephen O'Grady, died at the scene.

Strike Force Nerrim was initiated by police from Griffith and Leeton, who located and seized the utility on Monday after receiving information from the public.

In an online statement, police from the Murrumbidgee district said "lengthy, complex investigations" on Monday led to the arrest of Mr Rowe.

"This is the result of excellent investigative police work through the identification of the vehicle and male person of interest to the strike force," said Murrumbidgee Commander Detective Superintendent Michael Rowan.

"Significant enquiries confirmed the identity of the male and the circumstances surrounding the murder of [Mr] O’Grady. ”

The 25-year-old Leeton man was refused bail at Griffith Local Court on Tuesday, to reappear via audio-visual link on April 18.

On social media Mr Rowe lists previous employment at Australian Institute of Fitness and the Yanco Hotel.

According to Facebook both Mr Rowe and Mr O'Grady attended St Francis De Sales Regional College, a Catholic co-educational day and weekly boarding school for students from the Riverina.