I am trying to figure out if it is acceptable for cyclists to pass other cyclists on the right.
My wife and I were on our tandem northbound on PCH near Huntington Beach this past weekend. We were accelerating from a light and were about 100 ft or so from the light when a small group of about 8 cyclists start to pass on the left. We were in the middle-right of the "bike" lane and we began to move more to the right to allow the riders more room when a couple riders of this group passed us on the right, at the same time we were being passed on the left. The group didn't pass us with any great speed either, I was able to get a good look of disbelief at the riders passing on the right while holding my line. I wanted to yell at these riders due to what I believed was discourteous and unsafe conduct.
But now I want to know if I was in the wrong or is it acceptable to ever pass other cyclists on the right?