Thanks everyone for the suggestions. I found a Sugino 26t chain ring on Amazon for less than 20, so I think I'll grab one and give it a try. One other question, on order to get a Jump stop I need to know what my seat tube diameter is. Is there an easy way to measure the down tube size without a caliper? I know the seatpost is a 27.2 if that helps. Thanks again, Vince