That Bergeon tool comes in "F" and "S" (fine and standard) sizes, which basically refers to the overall width of the fork. The issue isn't the size of the spring bar, but the width of the slot in the back of the end-link. The slot on yours looks pretty wide, but sometimes it is very narrow, so you need a fine tool. So if you are going to buy only one tool, I'd buy one with the fine insert. Of course you may want to invest in both sizes since some people find the standard size easier to use. The inserts are replaceable.