I want to learn to bleed my new disc brakes. While there is a wealth of knowledge on the topic, it is difficult to tell the difference between pedantic explanations and sloppy work.
In the official Avid bleeding instruction video a meticulous procedure is explained, of course using their proprietary kit.
Shimano disc brake bleeding seems much simplified, and the kit is different (simpler).
- The avid kit looks really cool, with the clips on the hoses. And is not very expensive, at $60. Can it be used to bleed any kind of brake? With an adapter?
- The avid instruction stresses removing any air from the liquid prior to the bleed (they clamp the hose of the syringe and pull on the piston). Why is this not done in the Shimano video? I went to a (good) mechanic with my Shimano BR-M395 and he didn't do such a thing. He didn't even unscrew the caliper fluid bolt - only operated on the lever.
- Is Magura Mineral oil fully compatible with Shimano mineral oil brakes? Can the two kinds of oil be mixed?
- At the LBS they told me that the procedure is complicated with Avids, because their caliper design is awkward, easily trapping air. On the other hand, Shimano brakes are expected to fill up properly and without air by just tapping the hose while filling. Is this true?
- Any other differences between the procedures for Avid, Shimano, Magura, Tekrto, Clark's?
- Is it true that the oil is very dangerous for the skin and the eyes, and gloves must be worn?