11 actuationt is simply superior the very nature of its design makes it this way for every 1 unit of cable pulled or released the derailleur moves the same amount simple yes dependable and tolerant the best ease of set up and adjustment easiest this is why the top athletes in the mtb world prefer sram from the mud infested cross country of the sea otter classic to the rocks and roots of a fort william world cup downhill the 11 actuation stays precise and fluid 11 actuation precis