DOT 4: a refined specification polyglycol fluid as fitted to most faster street bikes now produced. . DOT?5: silicone fluid as used in Harley-Davidson motorcycles and many special high-performance brake systems. BF307: highly refined DOT 3 Brake Fluid, ideal for racing or high-performance road bikes; can be used in all systems specifying DOT 3, but not with silicone.
DOT 4: a refined specification polyglycol fluid as fitted to most faster street bikes now produced. . DOT?5: silicone fluid as used in Harley-Davidson motorcycles and many special high-performance brake systems. BF307: highly refined DOT 3 Brake Fluid, ideal for racing or high-performance road bikes; can be used in all systems specifying DOT 3, but not with silicone.