The bike rider suffered a broken rib and fractured his right leg when he crashed on a mountain bike trail in the Glenrock State Conservation Area near Scenic Drive just before 10am.

NSW Ambulance paramedics stabilised the patient and placed a splint on his injured leg.

Fire crews then used what is known as a 'mule' - a stretcher on large wheels designed for rough terrain - to transport the rider through bushland to a waiting ambulance.

The man was treated by paramedics at the scene and taken to hospital.

Fire and Rescue NSW Acting Superintendent Tim Hassiotis said it was a timely reminder that calling Triple Zero when you are involved in, or see, a crash can be the difference between life and death.

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