they're actually making a 115mm brake next year for the pivot series (not sure about FKS, but same thing essentially). But even then, you wouldn't be able to switch them out at a shop legally (but some seem to oversee this obviously). Just go around to a lot of different shops in your area and ask if they'll bend an FKS brake for you, some won't even touch other's will just go for it. I seem to notice the older guys who have been dealing with those brakes since the days of the FKX binding have no problem helping you out. it just all depends on who you ask...