• I have never disc assembled a hydro disc brake before. They are Shimano deore/ slx. I want to use the cable and ends from the deore and switch them to the slx lever and caliper. Quick Google suggested there was two rubber o rings?
    I assume both ends just unscrew?

  • The official line is you're meant to change the olives (crushable brass washers) every time you disconnect a hose. In reality people often don't bother and a one-time swap ought to be fine. Your risk of course.

    Make sure the old and new callipers both use the same style fitting (banjo vs straight).

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