A 200-metre ramp will be built on the north side of Sydney Harbour Bridge, replacing a staircase where cyclists have to push their bikes up several flights of stairs.

As part of $35 million in funding from the state government, a new dedicated cycleway will also be constructed from the southern end of the bridge to Kent Street in the central city, removing the need for cyclists to use roads or shared footpaths.

The new ramp on the north side of the bridge will provide a link to the proposed cycle route to Naremburn via North Sydney and Crows Nest.

Roads Minister Duncan Gay said the new ramp and cycleway would allow cyclists to ride more easily over the bridge, which he described as the "best cycleway in the world".