Removing stuck front brake caliper from a modern road bike I'm trying to remove the front brake caliper from my Specialized Allez.  It took me a long time, a lot of effort, and plenty of 3-in-1 to finally loosen and remove the recessed nut that screws onto the caliper bolt.  I expected that the caliper would then come off the forks with ease but unfortunately this didn't happen.  Am I missing something here or should the caliper be able to be removed when the nut is undone and removed from the bolt?  As I mentioned, the recessed nut was really difficult to remove and there was a bit of rust around it.  Maybe the bolt has rusted to the forks too.  If so, any tips for removing the bolt and caliper?
This is an old post but it came up in Google. I had the same problem. It's worth trying a bit of heat. I used a hairdryer to gently heat the area and this helped the bolt come loose.