which replacement brake pads for ultrega 6800 disc brakes?

bobinski
bobinski Posts: 570
edited June 2016 in Road buying advice
Morning All,
The pads on the front disc brake have lost their bite after a year and local shop thinks they are contaminated. They have advised me cheaper for me to order them online than they get them but now i am bewildered by choice. Its for Shimano ST-RS685 Hydraulic Disc Brake STI's & BR-RS685 Disc Brakes.
Thanks in advance>

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