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  1. #1
    mtbr member
    Reputation: pixelninja's Avatar
    Join Date
    Jan 2004
    Posts
    1,040

    "Topping off" brake fluid?

    Hi all,
    I recently took my bike in for a tune-up. When I picked it up, I was told my rear brake (Hayes HFX 9) had too much fluid in it, so they bleed it a bit. During my first ride afterward, it seemed pretty clear to me that they'd bleed too much, as I was able to squeeze the lever until it touched my grip. I haven't had a chance to take it back to the shop, and I've semi-fixed the problem by increasing the throw, but I'm curious: is it possible to add a bit of fluid without having to completely bleed the whole line? My gut says "no", but what say you?
    "If you suck, that means I'm better. The more you suck, the better I am. So. Let me count the ways you suck." - Scribb

  2. #2
    Meh.
    Reputation: XSL_WiLL's Avatar
    Join Date
    Nov 2004
    Posts
    17,516
    With the Hayes... not really.

    But it is very easy to bleed. You will need the fitting for the master cylinder, but if you use a syringe and a bit of clear tubing for the caliper end, you can just push fluid through.

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