Gaskets are ok. Here's the problem: They don't sit very far in the hole. The sides of the sleeve that slide into the hole don't go very far. I'm sure they designed it that way for some reason, but it doesn't seem to be seated deep enough in the hole to be securely secured. What speaks against it is their high weight, which not only makes them feel high quality, but also sits securely. However, if I pull the cable a little to loosen it or adjust something, the whole hub starts to come out. I cut the hole with a branded drill bit of the recommended size and it fits well. I solved the stable seat issue by taping off the part that goes in the hole a couple of times. It's enough to just sit a little tighter in the hole and press it against the sides. The finish is beautiful.