Hydraulic brakes require occasional bleeding in order to get rid of all the air bubbles and keep the brakes working smoothly. This how-to video demonstrates the process of pumping out old oil and replacing it with new, while taking out as much air as possible. You will need a driver, an 8mm spanner, brake fluid, a 4mm allen key, a small flat (chisel tip) screwdriver, a bleed pipe, tissue, and old pads or wood block for pad spacer. Watch this video bike repair tutorial and learn how to bleed hydraulic brakes on a bicycle.
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