Witnesses are wanted after a driver collided with the bike rider and pushed them into a wall, fracturing their thumb.
The incident happened at around 16:00 on 4 February at the junction of Route Militaire and Saltpans Road in St Sampson.
Police believe the Audi was nearby and may have seen the incident.
Any information or dash-cam footage relevant to this incident should be relayed to PC 135 SIMMONDS on 01481 222 222 or Crimestoppers, anonymously, on 0800 555 111.
