That was a generic answer as I don't own an Interceptor. However, I have used a piece of 1-1/2 inch plastic water pipe as a spacer in other motorcycle forks in the past, with a washer of a size that will fit into the fork tube with a little room to spare or you can just reuse the washer(s) that came out of the forks. Then I just cut the pipe to the length that I want using a hacksaw or something similar. Check out your local hardware store for plastic pipe and washers. Most manufacturers use a thin metal pipe as a spacer, but I have never had a problem with wear using plastic and it is a lot easier to cut to size than trying to cut a metal pipe.