Anyone had an experience like this on a BB. Noticed accasionally when I'm sitting in traffic on a slight incline & sitting up on the & just on the rear brake the pedal drops away for a moment. Never had a problem with the brakes at all when riding only seems to be doing this when I'm sitting up waiting at lights and leaning on the rear brake stationary... Thinking maybe master cylinder seal possibly allowing pressure to pass by?
Cheers if anyone else might have had this and corrected it.
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