Undertaking / filtering on left?

That behaviour is standard on my commute. I'm one of the few who will drop back to let vehicles do their thing or slow down/stop to let vehicles emerge from side roads. Most of the time it seems like a waste as everybody else undertakes or overtakes.

Cycle training - so very useful, but I consider myself a commuting newbie of 18 months.

Reminds me of my ride home on Friday - I almost got t-boned (not in a man-love way) by an rlj'ing cyclist... the cyclist then went down the inside of a skip lorry, who had moved at very low speed into the center of a junction, the driver had not indicated but from the road positioning it looked obvious to me he was going to turn left- I over took the truck on the outside and the rider appeared from the front of the moving truck, swerving around it & missing an impact by an inch or so.

I had a word with him at the next set of lights, before he rlj'd again... when I mentioned he should ride with more care, as he could have been killed, he said it would have been the truck's fault because he didn't indicate.. I said there was no point arguing the toss as to whose fault it was if you were under a trucks wheels, but he then rode off continuing his rlj..

There are lemmings out there/this is London, etc, etc.