I have one advertising chip from a bicycle convention in Las Vegas many years ago. A friend of our son owns a bicycle shop here in Maryland and he went to the bicycle convention in LV and he brought this chip back and gave it to me. Shimano is the name of a braking system and other parts on bicycles. And I believe DURA-ACE PERTAINS TO gearing system. I won`t swear to it. But I think I`m right. Enjoy, Ron Bayne