It's a grey area, it's known as filtering, according to the Highway Code it's legal in slow moving or stationary traffic, but it can be fraught with danger for both riders and pedestrians.

What really gets my goat is when a gang of them come down both sides of a queue at the traffic lights and surround the car at the front, sometimes blocking oncoming traffic when they follow their mates and then realise there is no more room at the front and end up sitting over the centre line, it happens a lot at the top of Bray Hill.

Last year I saw one rider almost get his foot run over by a bus coming the other way!!