How to Bleed Shimano Mountain Bike Brakes: A Detailed Guide
To bleed Shimano mountain bike brakes, you will need a Shimano bleeding kit, some mineral oil, a syringe, and a 7mm spanner. First, unscrew the bleed screw on the brake lever and attach the syringe to the bleed nipple on the brake caliper. Then, inject mineral oil from the syringe into the brake system until all the bubbles are pushed out. Keep pushing the fluid through until it comes out clear. Finally, remove the syringe, tighten the bleed screw, and test the brakes to make sure they are working properly.