OK, but I still don't understand??
Why and when you need these adjustments??
Sorry, I just don't know anything tech yet!!
OK, I'll speak so even Gravy can understand. The TRA has 3 adjuster bolts that are part of an offset cam. By adjusting these in 1 of 6 positions, it moves the arm angle relative to the position chosen. Each potion can raise your RPM ~200. This is designed so as you ride into higher elevations, which normally lowers your RPM, you can adjust them up to the sweet spot. Unfortunately, the standard adjustment is a 10mm nut and is odd and time consuming to change. These clickers, once installed, can be adjusted in about 15 seconds using the supplied allen wrench.