The man, in his 20s, was pronounced dead at the scene.
Gardaí in the midlands are renewing their appeal for witnesses after a fatal crash.
Seamus McCormack, from Garrycastle, died after the incident on the Kilmartin's Roundabout area of the Dublin Road in Athlone, at around 2.20am yesterday morning.
Gardaí are continuing to appeal for any witnesses to the collision to come forward.
Any road users who may have camera, including dash-cam, footage and were travelling on the R446 between Athlone and Moate on Wednesday between 1:45am and 2:30am, as well as in the area of the Kilmartins Roundabout are asked to make this footage available.
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