Allows rider to control the saddle angle/position on the fly making climbing easier, more comfortable, and less painful Loc8 technology offering 8 positions separated by 5 degrees Loc8&';s granular indexing makes mid-flight adjustments faster, great for MTB, Gravel and Road Climb-it Control optional fore-aft limits anywhere in the tilt range CNC milled in Whistler, Canada from 7075 T6 and 6061 T6 aluminum Additional stack height dependent on dropper post, average 10mm Required, but not included: injection-molded shims necessary for fitment by seatpost model