A road traffic collision occurred on the A40 West Wycombe Road, High Wycombe at about 4.40pm on Tuesday 15th September 2015.
The collision involved a grey GRS 125 motorcycle and a black Vauxhall Astra which were both travelling towards the town centre.
The Astra, which was driven by an Asian woman who was wearing a head covering, failed to stop and continued towards the town centre.
A female riding the motorcycle suffered injuries in the collision and was taken to Stoke Mandeville Hospital for treatment to her left ankle but has since been discharged.
PC Sarah Phillips, from the Thames Valley Roads Policing Unit based at Amersham, said: ‘I would like to hear from anyone who witnessed the collision or saw either vehicle before it happened.
If you have any information please contact the 24-hour Thames Valley Police enquiry centre on 101.
If you don’t want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111. No personal details are taken, information is not traced or recorded and you will not go to court.‘