• If you remove a brake hose from a hydraulic brake shifter (GRX 810) because the shifter is fucked and being sent away for warranty, do you need a new hose, olive, thingmy bob set up to put it back on or is it a plug n play on the old hose?

  • Depends a bit on how deformed the olive already is, I swapped a Deore brake lever once and didn't change the olive and it was no problem but if the olive is already very squashed it will be leaking.

  • So, if I have an olive lying around, which I do, I should change it. The olive is the only potential issue in most cases?

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