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What do you mean by resetting the pistons? Pushing them all the way back in so that they're flush with the callipers? It can be done simply by bending the rotor a little and using it to press the callipers back in. It's such a little movement that you won't deform the rotor doing so. Parktools (and I suspect others) make a specific tool. I have also used a ...


I've been researching this question in order to be able to adjust my self-adjusting brakes ;) So I'll report my findings here. I can't vouch for the accuracy since I am no bike technician. The pistons are floating freely and are surrounded by seals. If there was nothing holding a piston back it would be possible to pump the brakes until it popped out of the ...


I believe it is not worth trying it. You risk contaminating, scratching, or bending your rotors, as well as scratching or cracking a brake pad. Consider also whether there are bigger problems with your bike setup if it's too much hassle to remove your rear wheel to change your brake pads — how often does that happen: every 2–3 thousand kilometres? Is there ...


Seems like the BR-M445 and BR-M446 are the same/interchangeable, while the BR-M447 uses some different parts, but still has the same hose, so I assume that it is compatible as well.

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