pic: coupling for dual cylinder ballshifter

[cbale2000]

Originally Posted by AndreaV

What's the reason for making this?
Need more oomph to shift, or maybe multiple positions?

How would you accomplish more than two positions with two cylinders? If they have different strokes, won't one just fight the other (not to mention cantilevering the coupling)?

If this for extra shifting power though, I would like to know what application it's being used for that requires a second cylinders to accomplish.