I bought a Se.kai with Sun.Tour derailleur, however, the front derailleur does not shift. I've been looking at it and it seems to be the cable. Today, I attempted to remove the cable hoping I can replace it. But the cable seems to be integrated. Am I correct? Or perhaps there's a way to remove it and I just don't know.













Now, am I correct in assuming the cable is suppose to move freely through the rubber hose? Because it is not and is, in fact, the reason I feel the cable must be replaced. The cable seems to be "locked" in to a bracket on the frame near the front derailleur, and to the shifter itself. I have no idea how to take it apart short of cutting.

Please help!