Gardai in Sligo are reminding motorists to allow extra time for their journey this weekend ahead of the UCI Gran Fondo World Series getting underway.
While the cycling event has happened across Europe, this is the first time Ireland has hosted it.
It's set to mark a significant milestone for cycling enthusiasts and the Sligo community.
There will be a number of road closures locally to facilitate the event with diversions in place.
Sgt Aoife Hayes of Sligo Garda station says motorists are set to be primarily impacted on Sunday but that there will be adequate signage along the routes: