Rossignol is kind of bitchy when it comes to the fks binding platform. It's a liability to sell aftermarket brakes because one needs to unmounted and completely dismantle the heelpiece to change brakes. That's why a lot of people bend the fks brakes on older race models out, although this is a tedious annoying process. I've never heard of anyone bending brakes IN though... I think your best bet would be to trade those xxls for a pair of the 90mm versions, or maybe for some sth 14 drivers/tyrolia peak 15s/jesters which all have interchangeable brakes.