Description PowerMadd Extended Length Brake Line for Yamaha SX Vmax Mountain Max and Viper features extended length high performance brake lines. They helps to replace your existing brake line and give you an additional 6 inches in length. They are better than stock. They are made of extra-tight braided stainless steel with a Teflon smooth bore liner. It reduces line expansion to almost zero. All lines have a protective UV-resistant PVC clear coat.