Moves mounting location 1 5 / 8 towards the riders. Length from center to center is 3.5. Compatible with mostly risers which knurl center is 3.5.(adapter only, not includes the risers). Fits for Harley Davidson 14-later touring, which has a big outer fairing models and 2018-Later Softail FX models. Before you decide to make an order, please read the notice below first! And then we will give you a best solution. And which is included packing box and all other accessories. You bought wrong size or wrong item.