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  • Banjos and other fittings
  • oldnick
    Full Member

    I’ve got some Avid XO carbon brakes on one of my bikes, the hoses exit the lever ‘straight’ and take a great long loop to end up going in the right direction. Strikes me that replacing the straight fittings with a banjo type would improve matters.
    What fittings do I need to buy? Or are all banjos and fixings much of a muchness?

    oldnick
    Full Member

    Bump for the Sunday crowd :)

    JAG
    Full Member

    I can’t be sure on bike brakes but certainly on car brakes (which I design) you can’t just swap from straight fitting to a banjo fitting.

    The caliper has to be machined differently to ensure it seals.

    Straight fittings seal at the bottom of the hole while a banjo fitting seals at the top of the hole: where the banjo touches the caliper.

    oldnick
    Full Member

    I’m hoping that there will be a screw in adapter that seals at the bottom of the hole and providing a surface for the banjo o-ring to seal against, but it is not something I’ve stumbled over yet though!

    takisawa2
    Full Member

    Banjo bolts normally go in to a parallel port form, like a “BSP” or “G” thread, for example.

    They can seal in a few ways but commonly use a soft washer to sandwich the banjo body between whatever your putting in to & the underside of the banjo bolt head. Sometimes the banjo body carries the sealing mechanism, a recessed O-ring for example. Sometimes you just pop a copper washer or a Dowty washer either side of the body.

    You would probably be better off chopping the hose just after it exits the lever & putting an elbow fitting in.

    tjagain
    Full Member

    Hope brakes you can if you change the insert as well that screws into the lever so its certainly possible

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