Gardai are appealing for witnesses following a collision on Conyngham Road on May 5.
The collision occured at around 2am on Parkgate Street outbound, and involved a pedal cyclist and a vehicle. The driver of the vehicle failed to remain at the scene and continued towards Islandbridge.
A 28 year-old man was taken by ambulance to The Mater Hospital with serious but non life threatening injuries.
Investigating Gardaí are appealing for anyone who travelled along Conyngham Road on the 5th May 2019 between 1.50am and 2.20am, or for anyone with dashcam footage that was travelling along this route or travelling along the South Quays between 1.50am and 2.20am on the 5th May 2019 to contact Gardaí.
Anyone who noticed a black coloured vehicle with new damage to the passenger side in the last few days are also asked to make contact with Gardaí.
Anyone with information is asked to contact Kilmainham Garda Station 01 6669700 or the 1800 666 111.