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pdlouche
Why do bikes hate me?
MOT booked for Monday, thought I'd do a quick check over after its extensive rebuild.
Yup, rear master cylinder leaking, can probably mask it through MOT by filling its rubber boot up with marine grade thick sticky grease. But was a new genuine Brembo job fitted late 2018, and split and leaking internally (they have this plastic liner inside the alloy casting, leak is between the plastic and the casting, not the piston). SO it doesn't affect braking at all, but eventually enough fluid will leak/can leak that it'll be empty.
New one ordered, no point rebuilding them, it'll have been corrosion between the bare alloy casting and the plastic liner (like Avid Elixir brakes used to do). Bit shit for <3 years since new, 18 months of that in dry storage.