Originally Posted by
merlinextraligh
In our experience, there's much less need for a mirror on a tandem given that the stoker doesn't need to keep looking forward, and can easitly turn or tilt their head to see back.
I can see that, but a helmet mirror seems like such a small investment, it still seems worthwhile.
On a separate note: On a recumbent forum, there was recently a discussion about changing the timing ring so the captain and stoker didn't have to pedal at the same cadence. This could work for a non-recumbent tandem as well, although it would make standing up (quite a bit) more difficult. Just something to think about.