Originally Posted by
Iride01
I think you are struggling here with the comedy! Don't use this one if you are up on stage. <grin>
Actually, dual control lever is the term Shimano uses. While STI is a Shimano dual control lever, I'm not certain that every dual control lever meets Shimano's definition of a STI. I suppose I could look that up, but certainly someone else will want that acclaim.
https://bike.shimano.com/en-US/components/road.html
I'm certainly not a fan of this term as it says nothing as to what the lever is actually controlling. As my lame joke implies, controlling "duals" isn't a thing.