• You may have to explain. I need to undo the hose to extract it from the frame, can I seal it somehow to do so?

    • unbolt the lever from the untapped bars
    • unbolt the caliper from the frame
    • bike in stand, horizontal unbolt hose from caliper. As soon as hose is released point it upwards so it can't drip.
    • remove caliper (you can cap it off with the right sized screw if you want)
    • position bike vertically with hose facing up
    • draw hose through the frame and out

    It's all about using gravity to keep the fluid where it needs to be. There's surprisingly little of it in the hose. I suspect there is a bolt out there that would cap it off, too. Have a poke around.

    You will need to do a proper bleed on reassembly though - very unlikely you won't get air in the caliper and hose during the process.

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