Bikers speeding through villages in south Shropshire at more than 100 mph are being warned to slow down or risk prosecution. Motorcyclists are facing a clampdown on the road from Morville near Bridgnorth, through Craven Arms and on to Clun.
The warning comes after dozens of complaints about bikers speeding along the B4368.
Police said some motorcyclists travelling to Wales from the West Midlands are using the route as a racetrack.
One motorcyclist died last year and residents say they are living in fear of another serious accident.
Over the past two weeks, 12 motorcyclists have been stopped for speeding, and West Mercia Police's traffic support team is patrolling the road with video cameras.