A Lara man has been flown to hospital with life-threatening injuries after a crash along Forest Road on Thursday night.
The 49-year-old was riding his bike when he collided with a vehicle around 7.30pm.
The man was the solo rider of the bike and was airlifted to hospital where he remains fighting for life.
The 20-year-old Lara man reportedly behind the wheel of the vehicle was not injured in the incident and is assisting police with their enquiries.
The exact circumstances surrounding the collision are yet to be determined and investigations are ongoing.
Anyone who witnessed the incident or has information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au.