Cutting Shimano Deore Hydraulic Disc Brake Cables
Craig321
Posts: 169
Hi,
Does anyone have/know of a decent guide I can use to cut my Shimano Deore brake cables without having to re-bleed?
I have a fair bit of length to come off to neaten the bike up a bit and obviously don't want to just go cutting without researching.
Thanks,
Craig.
Does anyone have/know of a decent guide I can use to cut my Shimano Deore brake cables without having to re-bleed?
I have a fair bit of length to come off to neaten the bike up a bit and obviously don't want to just go cutting without researching.
Thanks,
Craig.
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Comments
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Hmm, I'm not sure if it depends on the make of the brakes?
This guide shows you how, but they're using a different make: http://www.bikemagic.com/maintenance/sh ... /4807.html0 -
As long as the lever is not actuated while the system is "open" you will be fine. I had to trim the m595 hoses and have not had to bleed them.0
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I'm assuming as youare talking bleeding you mean hoses not cables?
SimonCurrently 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.0 -
The Beginner wrote:I'm assuming as youare talking bleeding you mean hoses not cables?
Simon
YepDaveHudson wrote:As long as the lever is not actuated while the system is "open" you will be fine. I had to trim the m595 hoses and have not had to bleed them.
I.e. don't touch the brake level while cutting? :P
Would it just be a case of unscrewing, cutting, and screwing back in then? Providing I do it properly and don't need to re-bleed?0 -
Yeah that's it, I just used a posh word
You will need a new barb and olive I think but otherwise just unscrew and trim then put back.0 -
DaveHudson wrote:Yeah that's it, I just used a posh word
You will need a new barb and olive I think but otherwise just unscrew and trim then put back.
Why would I need a new barb & olive. Do they not go back on once taken off?0 -
Surely if you cut the hose the fluid will leak and air will get in?! :?0
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Personally I would empty the system first, cut then re-bleed, but if you think you can do it without bleeding, crack on and good luck to you!0
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you will definitely need to bleed the system after cutting the hose, unless you perform the enitre operation submerged in mineral oil (or brake fluid for other brands of brakes)0
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As said, as long as you don't operate the lever while you have the the hose disconnectedit'll be fine, no need to bleed them.
You might get on odd drip from the lever but seeing as the reservoir cap is still on then its still sealed, the chance of getting air into the lever thru where the hose connects is pretty slim, same with the hose / caliper.
On the small chance of getting any air in the system, just place the lever so the reservoir cap is level, remove it then just pull the lever a few times, this will allow any small bubbles rise back up into the reservoir.
Swapped / shortened loads (problys 100's) of hoses and its very rare you need to bleed the system.0 -
You will need a new Olive at the very least - the old one will have been squished by the assembly and need replacing - barb may be salvageable. I'd probably bleed it again - doesnt take long.Closet jockey wheel pimp whore.0