Originally Posted by koala logs

We agree on the 120 rpm. Feels quite okay to me but only after many weeks of training at it. Beyond 130 rpm, I start to bounce on the saddle and that's where I start to feel the losses from the bouncing and any other un-smooth motions on the bike and with the losses magnified by the high cadence. But at 120 rpm or less, I remain quite smooth and efficient with pedaling.

I wouldn't even dream of pedaling close to 160 rpm for long periods. Looks far too ridiculous. You'll definitely grab lots of attention on the road if you did that.