I hope someone can help. I've got M-755 xt four piston hydros front and back on my surly 1x1. They both rattle like crazy, the rear especially when I'm at +15mph. I've isolated it to the brakes, by swapping out parts (wheels, rotors, hydro lines, fork, bb, crank, chain, cog, etc.) on the surly, until I isolated the noise.
The calipers are tight on the frame. I think it's the brake pads rattleing around in the calipers. I've had just the rear xt brake for about 9 months, and just bought the matching front last month. They both rattle! Help, it's driving me CRAZY!
Can I push the springs out more so the hold the pads "tight"? different pads & springs?
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