We offer a range of different suspension products for mountain bikes that are aimed at aggressive riding when small bump sensitivity and bottom out resistance need to be balanced better. Generally all links make the bike more progressive. Some add travel as well, but the progression is really what it's all about. This helps the bike track better for a variety of reasons while also being harder to bottom out. You set up doesn't have to be sensitive but easy to bottom out or stiff but hard to bottom out.