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New Deore M6000, piston leaking?

matudaveymatudavey Posts: 107
edited February 2018 in MTB workshop & tech
I've just fitted some brand new M6000 calipers from CRC as they seemed a good deal.
I've mounted connected and bled with Uberbike cables and RS505 shifters.

However, on the rear I've noticed a small sign of liquid, almost a small bubble, each time I squeeze the lever.
I tried to video it - look behind the far brake pad

Am I right in saying this is defective and should send it back? or is there a setup issue?

thanks for your help


  • 02GF7402GF74 Posts: 1,294
    If there is brake fluid coming out by the piston then they are faulty.

    I suggest removing the pads and drying up any fluid there, then retest. If brake fluid appears, then definitely faulty.
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