I did the vinyl tubing thing myself that nchawkeye is referring to. Pull the plastic bushings out of your API climber, get tubing from home depot and cut two 6 foot lengths, heat it up in some boiling water to make it a bit more pliable.While still warm, run a piece of strong wire thru the tubing, attach one end to something that won't move and attach the other end to your chain. PULL! use a drill or soldering iron to put holes in where they were on the original tubes and there you have it. I did this 3 or 4 years ago and it looks like I did it yesterday. Much better than the tubing that comes with the API. If I find the original post w/pics on how to do this I'll post it.