shipping restriction: this item can only be shipped within the united kingdom. liqui moly dot 5.1 brake fluid 250ml code: bklm25000 recommended by gorilla brakes as the best 5.1 fluid for hydraulic bike brakes, the liqui moly dot 5.1 offers outstanding performance and reliability. perfect for mtb, e-mtb, and road riders who demand maximum braking consistency. features dry boiling point: 270c / 518f premium quality from leading automotive brand liqui moly low viscosity for fast response, even in cold weather compatible with all dot 5.1, dot 4, and dot 3systems compatibility suitable for all bicycle hydraulic brake systems designed for dot fluids, including: sram avid hope formula (except cura) hayes note: not suitable for systems using mineral oil (e.g., shimano, magura mineral versions, tektro / trp mineral systems).