Originally Posted by
Forrest74
Another huge benefit of looking back is that is signals drivers that you are considering a move.. a couple quick glances and most cars around here will slow down and allow you to cut in to make a left turn.
This is assuming the only time to look back is just before a lane change/turn, etc. Most of the time when I look back (with a helmet visor-mounted Take-a-Look mirror) I'm not considering a move. Just looking to see what's happening behind me.
Looking back over the shoulder is not generally an option with recumbent bikes, anyway.