Bleeding bicycle or mountain bike brakes

• Bleed kit including connectors for your brake brand
• Bardahl DOT 4 Mineral Oil
• A shim or pad spacer
• A flat key
• A T15 Torx key
• One to two syringe(s)

• Loosen your brake lever and turn it so that the bleeder screw is at the highest point.
• Remove the brake caliper and place the spacer between the pads or the shim if you removed the pads.
• Fill a 20 ml syringe with Bardahl mineral oil and connect the tip to be fixed on the brake lever.
• There are 2 techniques available to you: it all depends on whether you have one or two syringe(s).
• If you only have one syringe, then use a rubber band and a small bag to collect the used oil. In the best case, use the 2nd syringe which can be used to suck up the oil.
• Connect the syringe to the bleed tip and unscrew it half a turn with a flat wrench.
• Pour the fluid into the caliper. This way, the old fluid comes out through the brake lever. This way, you can see the air bubbles that are responsible for poor braking.
• When the syringe is almost empty, screw the purge tip back on with your flat wrench and remove the syringe.
• On the brake lever, remove the suction syringe or sachet.
• Tighten the screw with the T15 Torx key.

Test your brakes and adjust if necessary.
If adjustment is necessary, you will need to center the disc brake caliper to prevent the disc from rubbing against the pads.

Using an Allen key, loosen the two screws holding the caliper by half a turn. It should be possible to move it. Then, turn the wheel while playing laterally with the caliper so that you no longer hear the pads rubbing against the disc.

Once the caliper is correctly centered, tighten the two fixing screws, being careful not to touch your settings.