How to Easily Bleed Hydraulic Brakes on a Mountain Bike: A Step-by-Step Guide
To bleed hydraulic brakes on a mountain bike, first, remove the old brake fluid from the system. Then, attach a bleed block to the brake caliper and attach a syringe filled with new brake fluid to the brake lever. Slowly pump the syringe to force out any air bubbles from the system and ensure that the fluid level remains constant. Repeat the process until the brake lever feels firm and there are no more air bubbles. Finally, remove the syringe and bleed block, and test the brakes to verify that they are working correctly.