Lovely little bag, but I agree — they are not one size fits all, so a pic of it on your bike would help us suggest what you could do. Even without a photo though, I can make a couple of suggestions. First, the metal frame can be bent so that it holds the bag away from the brake cable . (You may note that the frame currently has a slight bend in it.) Second, you may need to add a small Porte-paquet to support the bottom of the bag. Let’s see if I have a decent pic of an old Cannondale bag on my Grand Jubilé.


1973-4 Grand Jubile along the canal outside Reims



You should be able to see the little rack under the bag. Without it, this bag sags onto the tire ifself. Hope the pics suggest a solution for you.