• Disc brake noob, first time shortening a hose question. I can't remember if the lock nut was originally threaded all the way into the lever body (SRAM S300) but now that I've cut the hose and changed the barb and olive, the lock nut is only going in about 2/3 in by hand. I can tighten it with a spanner but without a torque setting I'm worried I'll crush something. I've loosened things off and try to wiggle the hose in further but feel like it's at its limit. Seems to work fine and no obvious leaking but I'll definitely need to learn how to top up the fluid as I lost more than anticipated.


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  • but now that I've cut the hose and changed the barb and olive, the lock nut is only going in about 2/3 in by hand.

    There is normally a rubber sleeve that slides back over, as it doesn't go all the way back in. If it's not off camera and not fitted... maybe next time :)

    If you can find a crows foot tool that works with a torque wrench, it's very reassuring, they do go in quite hard (8nm). Guess the point is you are trying to crush something a little.

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