THE latest weapon against speeding motorcyclists has been unveiled.

Police and fire officers used two new speed matrix signs on roads in the Yorkshire Dales with poor motorcycle accident records at the weekend.

The boards measure how fast a biker is travelling and flash a "slow down" message if necessary.

Police were stationed farther up the road to issue speeding tickets to riders who ignored the warning.

The signs and a speed gun were paid for by Richmondshire Community Safety Partnership.