Police are pulling in motorcycles near the Pole Position workshop on the A13 coming in to London.
I saw them from a distance so tucked in behind a lorry 
Apologies I think it may be off the A13 there. A1203 The Highway.
Yep, on Highway, Westbound, just past BP garage, Mc D’s and Pole Position. Had a van pulled over when I went past, but no sign of bikes.