I need some new pads for my CX bike brakes.
They are the Ultegra 6800 hydraulic ones with an RS785 caliper.
I think I remember reading you can use XT brake pads in there? Just widening my options....
I've just been through this. Depending on the XT model you're referring to, you can:
http://www.chainreactioncycles.com/shimano-xtr-xt-slx-alfine-g02a-disc-brake-pad/rp-prod130816
Compatible with the following Shimano Models:
BR-M9000 - BR-M785 - BR-S700 - BR-R515 - BR-M9020 - BR-M675 - BR-CX75 - BR-R315 - BR-M987 - BR-M666 - BR-RS785 - BR-M985 - BR-M615 - BR-R785 - BR-M8000 - BR-M9000
EDIT: Be careful with the pad retaining screws on your calipers if this is the first time replacing your pads. The screws in mine were both slotted head rather than allen type. Both slots immediately crumbled on trying to remove the screw, one whilst turning anticlockwise (conventional undo direction) and the other whilst trying to turn clockwise (to try to crack any corrosion before leaving a 'good' surface in the slot for actual removal). I had to drill them out...