Originally Posted by
tomato coupe
"Half-step" gearing was great in the days of six speed freewheels, but it's pretty hard to configure such a system so that two chain rings stay interleaved through 11 or 12 gears.
It's difficult as an end user because very few 11/12-speed cassettes are designed with evenly-stepped ratios, and because matching half-step cranksets don't exist. But that's not something that a component manufacturer couldn't work around. For example, here's the interleave on a 50-46 crankset paired with a 10-12-14-16-19-22-26-30-36-42-50 cassette:
Originally Posted by
tomato coupe
You introduced the term.
I was referring to this:
Originally Posted by
tomato coupe
Rear derailleurs guide the chain via two pulleys that track the sprocket sizes