On: Is Ford about to reinvent the bicycle derailleur?

[vizzier]

As I understand it their downsides come in a few forms

- They are heavier than a derailleur system, which probably matters less with electric assist

- They generate slightly more friction in the mechanism particularly before being "broken in"

- They are not as user end serviceable

This combined with the price is probably what has prevented their mainstream infiltration in a big way (yet)