two possibilities I can think of

来源: wimax88 于 2009-08-07 15:50:30 [] [旧帖] [给我悄悄话] 阅读数 : (177 bytes)

1. caliper pistons or sliding pins do not slide well. You can take caliper off and check.
2. the pads you bought have high compressibility, therefore there is constant drag.

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