Our SB140 link brings the improvements we've made to the 29" SB frames to the 27.5" platform. The increase in progression makes it easier to balance small bump sensitivity and bottom out resistance. As a result, the link allows the bike to glide over roots easier while also having more support as it gets deeper into its travel. This support is what prevents harsh bottom outs and keeps the bike feeling more composed in g-outs and corners.
As with or other Yeti links, this link increases the travel by 5 mm with the stock shock size. The SB140 already uses a 210 mm x 55 mm shock so this is the most travel you can get out of the frame without doing any shock modifications that are out of the ordinary.