Originally Posted by desertdork

Here's another way you might *lock* your RD into another gear of choice. Take a shift cable or road brake cable and thread it through the RD. The molded end of the cable will be butted up against the RD barrel adjuster. While holding the cage under the cog of choice, tighten the RD pinch bolt. Cut off excess cable. You can tune the cage position via the barrel adjuster.