Perhaps most rookie question ever. First tri next weekend. Riding an old mountain bike. My race packet says "bike must have end plugs or will be disqualified." What are end plugs. Googled them, sure enough they look like plugs. But no pics of where they go. Im assuming they go in the ends of the handlebars, but dont want my assumption to keep me from racing.. feel free to publicly ridicule me after you answer.. on a side note, if im correct, why would that be so important you would be dq.