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New XT Disc Brakes

Old 02-16-11, 10:09 PM
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paule
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New XT Disc Brakes

Ok, so I got a great deal on an OEM XT gruppo that includes a set of disc brakes around the first of the year and just received my frame and began building up the bike today. Everything is going great until I mount the pre bled brakes. It turns out, the rear brake, as in the exact cable length I need to run to my rear brake, is factory mounted to my left lever. This is repeated with the right lever for the exact cable length to my front brake.

Did I receive some European OEM brakes? Has anyone heard of this before?
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Old 02-16-11, 10:19 PM
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I prefer Moto lever setups . brake on the rear on the right.

Flying dismounts in cyclocross its handy to have rear on the right.

if you want different you have to drain the lines
and refill the system, bleed air out, etc, when You finish swapping levers.
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Old 02-16-11, 10:23 PM
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Rear brake on the right is the standard set up as far as I know. These brakes came OEM the opposite of this. Can I swap cables without bleeding?
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Old 02-16-11, 10:27 PM
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It's not a hydraulic brake?
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Old 02-16-11, 10:29 PM
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Yes, it's hydraulic. I didn't know if there was a way to swap cables without allowing air in.
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Old 02-16-11, 10:35 PM
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Nope.. I managed with My Magura HS33 brakes , but they're a rim brake and the system is closed.

all discs are an open .. expansion tank system, as the caliper friction heats the disc and the pad and the fluid.

It's a Hose not a cable ..
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Old 02-16-11, 10:47 PM
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Okay smart guy...I just found this: https://bike.shimano.com/publish/cont...20Trimming.pdf
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Old 02-16-11, 11:35 PM
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Good luck with that.
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Old 02-17-11, 12:13 PM
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Once in a while we've been shipped bikes meant for the Australian market that have the brakes "moto" or British style. Luckily they've all be cable brakes so far so no big deal. Good luck with the hose swap. That's the exact kind of pain in the butt that makes me stay away from hydros on my own bikes.
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Old 02-17-11, 04:03 PM
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Shimano is usually pretty good with instructions

Originally Posted by paule View Post
Okay smart guy...I just found this: https://bike.shimano.com/publish/cont...20Trimming.pdf
The instructions are always very complete - glad to see you found those!

Assembled several machines recently with Shimano hydraulic brakes, some with those pre-bled kits like yours, some with individual components that required filling and blleding the system afterwards.

My main gripe with the pre-bled kits was pretty simple. The kit is a `one size fits all` design so for my own tastes, the hoses were sever inches too long. Of course thats an easy fix if you just shorten the cables, and as per the document you just tripped across - you wouldn`t even need to refill the resevoir if careful.

But you`d definately need a new brass olive. Its possible to reuse the brass tube insert, but not the brass olive. So do you think they include those items with a pre-bled kit? Apparently not.

So I ordered spares. Even took one down to a specialty shop here in the area. Do they keep these in stock? Apparently not. Its only a $1 part, but it took several weeks and two attempts to get a half dozen of the right items in.

You would think that if they really wanted to sell this XT stuff that both Shimano and the shops here would support it a little better.
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Old 02-17-11, 05:26 PM
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Pre Bled and a quickly installed component, is the essence of a volume OEM contract, I'd say.
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