POLICE are wearing camouflage to nab speeding motorcyclists in the Yarra Ranges. Officers in jungle greens have been hiding behind bushes to trap hoons racing along the winding roads.

The ranges are a favourite with motorbike racers, who post videos on YouTube.

Sgt John Morgan, officer in charge of Operation Surreptitious, said it was difficult to police the region using regular tactics.

"The road is so narrow there's nowhere a marked car can sit with the speed camera," he said.

"And if a police car takes a speed from an oncoming vehicle, the drivers know there's not many places we can turn around and give pursuit.