After our ride yesterday I noticed a bunch of black spider-webbing all over the rear wheel/tire. At first I couldn't figure out where such stuff could come from. Then I remembered reading about this some years ago. Yep, turns out I had adjusted the rear brake a bit too tight when I installed the rear sets a couple of weeks ago. So during the ride, it heated up/melted the rubbers. I recall in the past that some folks talked about making their own cush rubbers. Does that actually work? What is used, tire rubber? Otherwise I will have to order a set from the US and deal with the shipping delay that will likely result (took a month for a small part from CNW to get here!). So if making them IS feasible, I might give that a try.