This video will show you how to properly bleed your SRAM Hydraulic disc brakes.
You will need the following tools and supplies: Avid Bleed Kit, T10 Torx Wrench, 2.5 mm Hex wrench, torque wrench. 2.5 mm hex bit socket, t10 torx bit socket, clean rags, and isopropyl alcohol.
Preparing the syringes: fill one syringe half full with Avid dot fluid and the other syringe one quarter full. Tap the side of the syringe to bring any air bubbles to the top. Place a towel around the tip and slowly push any air bubbles out of the syringe. Close the hose clamp and pull on the plunger. Bubbles will appear to form and enlarge. Continue to pull on the plunger and tap the syringe to release any bubbles from the side or the bottom. Repeat this process 2-3 times for each syringe.
Parts preparation: remove the wheel from the bike. Remove the brake pads from the caliper, and insert the appropriate bleed block. This will help prevent system overfill and keep dot fluid from contaminating your brake pads. Remove the caliper bleed port screw from the bolt. Thread the half full syringe into the caliper bleed port.
Pull the lever hood back to expose the bleed port. Remove the lever bleed port screw. Thread the other syringe into the lever bleed port.
Bleed procedure: Push on the caliper syringe plunger to move fluid into the lever syringe tip that is half full. You should also see air bubbles fill the lever syringe. Close the clamp on the lever syringe. Pull the lever to the handlebar and fasten it. Pull out on the caliper syringe plunger, then gently push in on the plunger to pressurize the system. Repeat this several times until large bubbles stop coming out of the caliper. Be careful not to pull too hard on the plunger or you will pull air past the plunger seal. Apply pressure to the caliper plunger and slowly let the brake extend. Close the clamp on the caliper syringe, then remove the syringe from the caliper and reinstall the bleed port screw. Wipe off any brake fluid from the caliper. Open the clamp on the lever syringe. Pull out on the plunger, then gently push in on the plunger to pressurize the system. Use gentle pressure. Squeeze and release the brake lever 10 times, allowing the lever to snap back to its starting position. Repeat this until large bubbles stop coming out of the lever. Apply a small amount of pressure to the syringe plunger. Remove the syringe.
Reinstall the bleed screw into the bleed port. Use a clean rag and alcohol to remove any brake fluid from the lever and caliper. Reinstall the brake pads and the wheel. Make sure everything is good, and you’re done.