A man is in a critical condition in Royal Hobart Hospital after a trailbike crash in the Derwent Valley.
The 35-year-old rider was injured in the incident on private property at Ellandale on Sunday afternoon.
He was taken to hospital by the Rescue Helicopter.
In a separate incident, the rider of a quad bike had to be rescued after crashing at Wynyard.
The 27-year-old was thrown off the All Terrain Vehicle when it flipped going up a hill on Sunday afternoon
He was taken to the North West Regional Hospital in a stable condition.
Police would like to remind riders of ATV’s’ to take caution when riding them.