The incident happened yesterday lunchtime at 1.30 in Ranmore Common Road.
Police are looking to hear from anyone who may have witnessed the collision or have any dashcam or helmet footage.
From Surrey Police:
We are looking to speak to anyone who may have witnessed the collision or have any dashcam or helmet footage that may have captured the incident or either vehicle driving prior to the collision. If you have any information that might assist our investigation, please get in touch quoting PR/45250007057 via:
Our online reporting tool https://www.surrey.police.uk/tua/tell-us-about/cor/tell-us-about-existing-case-report/
Calling us on 101
If you do not wish to speak to police, you can call independent charity Crimestoppers on 0800 555 111.