An off-road police chase has ended in arrest after the assailant's car became wedged on a footpath between a bus-stop and a building.

Police had been searching for the 26-year-old man since last Sunday, June 19, when he allegedly sexually assaulted and robbed a 22-year-old woman in a motel room in Sydney's CBD.

The Ford was being driven along the footpath of Old South Head Road in Bondi in an attempt to escape police. Credit:Evan Zlatkis

Police allege he had a firearm during the assault.

After an investigation, police say they tried to stop a silver Ford sedan on Bondi Road at 11.30am on Saturday.