Your Roubaix is a carbon frame isn't it? Be careful what band you put on that seat tube. I'm actually surprised that it had a quick release. I would have expected a band similar to the one on my Tarmac, that is just essentially a bolt and nut, but also has torque specs printed on it. Maybe they didn't do that back in the day yours was made. Also, if it's CF, even with a aluminum seat post, I'd think carbon paste more proper than grease or anti-seize.

I don't know whether or not the concerns I just gave you are valid considerations when getting a new band for a frame with a CF seat tube. However it doesn't seem right that just any clamp band will do.

Perhaps some others that know will say if there are.