I've taken it for a spin and all is fine on that caliper, but the other one is touching on one side now. They're not new, maybe they just need disassembling and cleaning.
Have you cleaned and lubed the pistons with Hunters lube?
I've done them with silicone lubricant, seems to be fine now, its the other bloody one that's not.
@velosaurus started
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I've taken it for a spin and all is fine on that caliper, but the other one is touching on one side now. They're not new, maybe they just need disassembling and cleaning.