Councillors at Dublin City Council are due to vote on Monday week whether to extend the Dublin bike scheme.
Under the plans, the number of Dublin bikes would increase from 550 to 1,500 over the next 12 months.
The number of stations would also double to around 100.
They would stretch as far west as Heuston Station to the Point Village in the east of the city centre.
Labour councillor Andrew Montague said the increase in bikes was needed because the demand is so high.
It is believed the expansion will cost at least €5m.
Most of the funding is expected to come from the National Transport Authority.
If the plan is agreed by councillors, the annual subscription for the service would rise from €10 to €20 per year.