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So I appear to be lacking some knowledge on the disc braking front, this may be a numpty post...
What are open braking systems?
How do you reset the pads on a hydraulic disc systems when the auto pad wear has forced the pistons inwards? I've levered them out but applying the brake then forces them to move back in and stay in?
Cheers,
Mart
Open systems have a small reservoir of brake fluid so as the pads wear, more fluid is let into the main system. This keeps the pull of the lever the same. Most decent levers still have a reach adjust too.
When pads are changed you can just push the pistons back into the calliper.
You've levered them out, as pushed the pads/pistons away from one another?
Then applied the brake so them come together?
To reset the pistons pads you need to push them apart
You're not supposed to push against the pads as this can cause the pad material to fall off the backplate
You're not supposed to push against the piston in case you damage it
Apparantly you're supposed to have some old pads to lever against
In practice if you're careful youll probably get away with a flat screwdriver on the pistons or pads to push them apart
Ive seen at least one tool somewhere specifically for pushign them apart but my current favourite is probably the end of a flat file on the pistons, lots of leverage/contact to the piston