He decided to follow his mate and filter up a turn left only lane at speed to go straight ahead. The truck in middle lane (left lane for the forward traffic) pulled onto the roundabout as it was clear to his right and almost ran over the idiot on the 2nd bike. It was only the truck divers quick reactions that saved the biker. The truck driver was not amused and set after the bikes.
I managed to signal to the truck driver and got him to back off and then followed the two bikes for a while. They seemed to be in one hell of a hurry as they didn't want to take any prisoners. Squeezing past an articulated lorry near the Haudigen was questionable as well as it was obvious it needed to straddle two lanes especially when you didn't seem to have a clue where you were going and did a U-Turn round the roundabout anyway.
Thanks for pissing off the traffic I have to ride in everyday.
