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Hydraulic system being in someways simpler ie only mechanical moving partsI thought the pad retraction depended on the proper flexing of a rubber ring or seal; and I thought I came across a video detailing the need for cleaning that stuff inside the caliper to maintain proper retraction. Am I remembering wrong? ISTM that without some such mechanism, removing hydraulic pressure would still leave the pads lightly scuffing the disc.
are the pistons and the levers and sealed from grot so will work even if
completely clogged up.
Extremely easy to live with change pads every so often, for my uses lessYour use must be unusual. My rim brake shoes seem to last decades. And I've mentioned the Warm Showers guest whose disc pads surprised hiim by wearing out on a hilly northern Pennsylvania tour.
often than rim pads which just get eaten by the slop.
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