Hayes Kit, Insert & Olive (2-Pack) 149 kr 134 kr Kit Insert & Olive 2 packCompression bushing (barb and olive) for all current Hayes Disc Brake systems.New 2 piece design that works with Dominion and more. In stock. Add to basket Share Stock: 6 Article Number: 9839471 Information Reviews Kit Insert & Olive 2 packCompression bushing (barb and olive) for all current Hayes Disc Brake systems.New 2 piece design that works with Dominion and more.