Shimano BR-M675 brake hose swap

IL Buono
IL Buono Posts: 7
edited November 2012 in MTB workshop & tech
Although I have found lots of posts I cannot seem to find a definitive answer so help would be appreciated. Can I simply swap the hoses out of the levers as the brakes came from Germany (wrong side yaya). Will fluid go everywhere or is it a case of unbolt - pull out - stick in other lever??
Thanks for any help

Comments

  • nicklouse
    nicklouse Posts: 50,675
    get a bleed kit.

    you may or may not manage without needing to bleed.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • The Rookie
    The Rookie Posts: 27,812
    +1, somtimes you can get away with it, sometimes you can't...trick is to squeeze the lever to get the pistons out a bit, swap the levers then push the pistons back expelling the air from the line as you do so....doesn't always work though and the system will be slightly underfilled, besides you almost certainly will need to shorten the hoses!
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • mister p
    mister p Posts: 405
    IL Buono wrote:
    Can I simply swap the hoses out of the levers as the brakes came from Germany (wrong side yaya). Will fluid go everywhere or is it a case of unbolt - pull out - stick in other lever??

    You can get away with pulling them out, swap and bolt up again. But as previously said you will need to trim the hoses really. You can get away with doing this without a rebleed if you are careful, I can do it about 90% of the time. But if you get an insert that is being a bugger to get into the hose then you are likely to lose a drop of fluid. These brakes work on such a small amount of brake fluid that even a tiny air bubble will affect performance. So I would buy a bleed kit just in case.

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