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Bike brake fluid is used in any bike running hydraulic brakes. When you bleed the brakes you should change the fluid. Different brands will use different fluids (either mineral oil or Dot fluid). Shimano, Giant, Tektro and Magura brakes take mineral oil, SRAM, Avid, Formula and Hope brakes have Dot fluid (always check which Dot fluid you need before you buy). Find our latest range below.