Fenwicks dot 51 brake fluidfenwicks brake fluids are manufactured to the highest quality standards and specifications not only in the bike industry but also in the automotive industry fenwicks dot51 brake fluid is no exception due to the safety critical aspect of the product no corners are cut whatsoever fenwicks packaging is unique and offers a fully sealed ready to use fluid which not only allows accurate product dosage but may also be a substitute for the syringe used in bleeding