Some 17 routes are identified as potential danger spots

Officers estimate there may be 11 more deaths and 189 injuries involving motorcyclists this year.

Since 2001, 65 motorcyclists have lost their lives in the force area. The campaign is focusing on crash hotspots.

Operation Triumph has identified 17 routes where there are have been consistent motorcycle collisions over a three-year period.

Ch Insp Tony Oliver said: "Our campaign will focus police attention on high-risk routes at the right time of day in a determined effort to cut unnecessary deaths and injuries."

'Road users'

A casualty profile for riders of motorbikes in the Avon and Somerset force area shows most are aged between 30 and 44.

The top three causes of fatalities are failing to judge their own path, failing to judge the path or speed of other road users, and excessive speed.

Ch Insp Oliver added: "I know from my own experience that some of the rural routes identified are the most scenic in our region and excellent routes to motorcycle on.