Dublin's Lord Mayor says the Transport Minister should be "throwing money" at expanding the Dublin Bikes scheme.
More than 66,000 people have signed up to use the bikes since they were first introduced over ten years ago.
In 2009, there were 450 bikes available at 40 stations.
Now, cyclists share 1600 bikes at 116 stations.
However, there has been much frustration that stations are still mostly located in the city centre.
Despite much talk about bringing the service into the suburbs, Dublin City Council hasn't yet found the money to make it happen.
When JustEat came on as sponsor of the bikes it was hoped more stations would be installed.
Relying on money from sponsorship and advertising for the scheme has been described as "unsustainable".
At the moment, those who sign up to use the bikes pay a €25 a year fee.
The Lord Mayor of Dublin believes expanding the scheme is a "no-brainer".
Paul McAuliffe said the Transport Minister "should be throwing money" at installing more stations.
"It's absolutely crazy that Dublin Bikes does not go into our urban villages", he said.
Making more Dublin Bikes available has been suggested as a quick and easy way to help improve traffic congestion and air quality in the city.
