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So many different views on shortening brake hose

KevChallisKevChallis Posts: 646
edited March 2014 in MTB workshop & tech
Hi all,

my new deore brakes turned up today, and I have been searching around for shortening the hose, there are so many different people saying different things, is there a definitive way of doing it?

do you have to remove pads?

do you have to keep lever depressed?

Or can it be as simple as, undo nut, measure and cut (lever end), insert the insert, new olive and tighten it back up?


I have a bleed kit on its way from Epic Bleed Solutions just in case lol


Thanks for your ever ongoing help
Kev
PlanetX Pro Carbon
Voodoo Bizango

Posts

  • TwellyTwelly Posts: 1,437
    Pull back the rubber cover on the lever end, undo the nut, pull out hose... carefully, try and hold it up or put your finger over the end so you don't lose too much fluid (you will spill a little bit but that's ok), cut hose (again try not to lose too much juice), put the bits that were on the end you pulled out back on to your freshly cut end, put back in lever, tighten nut, replace rubber cover.

    I have done it to two sets and it really wasn't hard.
  • nicklousenicklouse Posts: 50,675 Lives Here
    So have you read the instructions that came with the brakes?

    Do you have a bleed kit?

    If no then read Shimanos way of shortening the hoses which may not need a bled kit.

    But most people still need a bleed kit.


    Why would you need to compress the lever at all? Sounds like you have been watching too much carp on YouTube.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • KevChallisKevChallis Posts: 646
    nicklouse wrote:
    So have you read the instructions that came with the brakes?

    Do you have a bleed kit?

    If no then read Shimanos way of shortening the hoses which may not need a bled kit.

    But most people still need a bleed kit.


    Why would you need to compress the lever at all? Sounds like you have been watching too much carp on YouTube.

    Actually, on this very forum, using the search bar at the top

    http://www.bikeradar.com/forums/viewtopic.php?f=10004&t=12957636&p=18726923&hilit=shorten+brake#p18726923

    I sai I have ordered a bleed kit, and I am trying to find shimano's way, as the instructions that came a sketchy at best
    Kev
    PlanetX Pro Carbon
    Voodoo Bizango
  • KevChallisKevChallis Posts: 646
    TwellySmat wrote:
    Pull back the rubber cover on the lever end, undo the nut, pull out hose... carefully, try and hold it up or put your finger over the end so you don't lose too much fluid (you will spill a little bit but that's ok), cut hose (again try not to lose too much juice), put the bits that were on the end you pulled out back on to your freshly cut end, put back in lever, tighten nut, replace rubber cover.

    I have done it to two sets and it really wasn't hard.

    Thanks
    Kev
    PlanetX Pro Carbon
    Voodoo Bizango
  • cooldadcooldad Posts: 32,599
    KevChallis wrote:
    nicklouse wrote:
    So have you read the instructions that came with the brakes?

    Do you have a bleed kit?

    If no then read Shimanos way of shortening the hoses which may not need a bled kit.

    But most people still need a bleed kit.


    Why would you need to compress the lever at all? Sounds like you have been watching too much carp on YouTube.

    Actually, on this very forum, using the search bar at the top

    http://www.bikeradar.com/forums/viewtopic.php?f=10004&t=12957636&p=18726923&hilit=shorten+brake#p18726923

    I sai I have ordered a bleed kit, and I am trying to find shimano's way, as the instructions that came a sketchy at best
    Yep, but that's just some random person posting random stuff. Which was questioned if you read further down.
    I don't do smileys.

    There is no secret ingredient - Kung Fu Panda

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    Parktools
  • How to bleed Shimano brakes (2012 onwards) http://www.epicbleedsolutions.com/blog/ ... no-brakes/

    How to shorten Shimano brake hoses without bleeding http://www.epicbleedsolutions.com/blog/ ... -bleeding/
  • KevChallisKevChallis Posts: 646
    I did read further down :)

    Thanks for all the help, will try this tomorrow
    Kev
    PlanetX Pro Carbon
    Voodoo Bizango
  • AlShackAlShack Posts: 38
    As with cars, do you need to make sure you keep the fluid well away from the frame? IIRC, I had a few moments with car brake fluid stripping paint quicker than anything ...
  • majormantramajormantra Posts: 2,094
    Shimano (and some other brand) brakes use mineral oil, which isn't nearly as damaging or unpleasant as the brake fluid (DOT etc.) used in cars. Some mtb brakes do use DOT fluid though, e.g. Hopes.
  • FishFishFishFish Posts: 2,152
    Shimano (and some other brand) brakes use mineral oil, which isn't nearly as damaging or unpleasant as the brake fluid (DOT etc.) used in cars. Some mtb brakes do use DOT fluid though, e.g. Hopes.


    and Avid.
    ...take your pickelf on your holibobs.... :D

    jeez :roll:
  • The RookieThe Rookie Posts: 27,811
    I guess FF doesn't understand what e.g. means...or or shall we all play the listing game...
    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.
  • njee20njee20 Posts: 9,613
    Why not? He was merely supplementing MMs offering of Hope, seems a useful contribution for anyone who may be wondering if they need to protect their frame whilst sorting their Avid brakes!

    FWIW Magura use mineral oil. Hayes and Formula use DOT fluid.
  • The RookieThe Rookie Posts: 27,811
    Tektro use DOT as do Clarkes (aka Quad, aka Vuelta) as well then.....
    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.
  • poahpoah Posts: 3,369
    KevChallis wrote:
    Or can it be as simple as, undo nut, measure and cut (lever end), insert the insert, new olive and tighten it back up?

    that's what I did then I bled it
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