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Discussion Starter · #1 ·
I need a custom made rear brake line and I asked Frentubo for a quote. I already have a 999RS Frentubo clutch line and I like the looks or their line. However the price for a custom made line is 100% more than a self made line using Allegri parts with threaded ends.

Now, it is safe to make a brake line your self using separate parts like these:
 

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I've been making up Aeroquip style -3 brake hoses for many years.

There are instructions that are very specific and must be followed exactly for safety reasons.
 

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Be aware that not all aftermarket brake hoses are dot/adr/or transport department approved and will void your isurance on a road bike.
Insurance companies love to find that sort of issue on a bike involved in a crash.
Make sure whatever you fit is approved for the juridiction you are riding in and no it's not safe to make your own brake lines.
Brake lines are not the place to consider diy for economy reasons.
They have to be tested to specific requirements and here in Oz they have to be fitted with stamped sleeves with the adr approval number on them
after certification.


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Be aware that not all aftermarket brake hoses are dot/adr/or transport department approved and will void your isurance on a road bike.
Insurance companies love to find that sort of issue on a bike involved in a crash.
Make sure whatever you fit is approved for the juridiction you are riding in and no it's not safe to make your own brake lines.
Brake lines are not the place to consider diy for economy reasons.
They have to be tested to specific requirements and here in Oz they have to be fitted with stamped sleeves with the adr approval number on them
after certification.


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What you mean is that YOU'RE not qualified to make up your own brake lines. You don't know me and you don't know anything about MY qualifications.

This is not OZ. It's not illegal to make up one's own hoses. If I were doing business with the public, I'd have to use a certified hose, but I can do what I want for myself. And I have for years without any problems.

Aeroquip style hose ends are in no way inferior to a swaged end as long as they are made up correctly by someone trained in the proper procedure.
 

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Pull your head in Pete, I'm in fact a qualified brake mechanic amongst other things.

I will never advise anyone who isn't certified to make his own brake lines.
(Just call your insurance company and ask them where they stand on the idea of home made hoses)
.
 

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Pull your head in Pete, I'm in fact a qualified brake mechanic amongst other things.

I will never advise anyone who isn't certified to make his own brake lines.
(Just call your insurance company and ask them where they stand on the idea of home made hoses)
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What is a qualified brake mecahnic's qualifications?

Just curious.
 

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In my case it means you were already a qualified A grade mechanic who then worked for the countries largest brake specialists who then trained you in specific brake repair disciplines and then issued you with the relevant certifications to carry out repair work on their behalf to national standards.
 

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I need a custom made rear brake line and I asked Frentubo for a quote. I already have a 999RS Frentubo clutch line and I like the looks or their line. However the price for a custom made line is 100% more than a self made line using Allegri parts with threaded ends.

Now, it is safe to make a brake line your self using separate parts like these:
I assume you're doing this for the quick release?
 

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Discussion Starter · #9 ·
Be aware that not all aftermarket brake hoses are dot/adr/or transport department approved and will void your isurance on a road bike.
Insurance companies love to find that sort of issue on a bike involved in a crash.
Make sure whatever you fit is approved for the juridiction you are riding in and no it's not safe to make your own brake lines.
Brake lines are not the place to consider diy for economy reasons.
They have to be tested to specific requirements and here in Oz they have to be fitted with stamped sleeves with the adr approval number on them
after certification.
You're right Davy, thanks! But was referring to a kit of brake parts. The brake line only needs one or two fittings at the end. So I will not need special tool to assemble all parts.
 

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Davyj"s post reminded me of our sprint cars brembo- wilwood stainless. High dollar system.had non-dot approved , " do not use on highway" stickers all because it used AN fittings rather than the double flair ! Lol
 

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Davyj"s post reminded me of our sprint cars brembo- wilwood stainless. High dollar system.had non-dot approved , " do not use on highway" stickers all because it used AN fittings rather than the double flair ! Lol
Makes me laugh, too. AN stuff is FAA approved for aircraft use and is used on racecars, but it's dangerous on the street.
 

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Hi David, Yes I need that hose of the Staubli dry brake connector.
Dennie,

My dad told me never go cheap on brakes and tires (40yrs master mechanic at Mercedes). I'm not a qualified brake mechanic nor expert, but my take is that each addition fitting is a possible cause for a leak.
I would spend the extra money for the one piece custom lines - that's just my opinion. I'm sure it will also look better with all your RS parts.

DC
 

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Makes me laugh, too. AN stuff is FAA approved for aircraft use and is used on racecars, but it's dangerous on the street.
What needs to be considered (as pro mechanics we sometimes lose sight of this one and assume everyone else is at our skill level) is that an oem hose isn't that hard to fit but specialised braided hoses and fittings do require a little knowledge and good mechanical skills to correctly cut, assemble and fit to the required standard.
FAA approved aircraft mechanics and race mechanics do all possess those skills but the average DIY backyard bike owner might well be lacking in these critical skill areas and certainly won't have the gear to test the finished product other than applying gorilla strength to the brake pedal or lever and then declaring the job safe.
That's just one reason why these types of non swaged brake hoses are a cause of concern especially if they can be bought in kit form at a cheaper price than a genuine or certified and approved hose.

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What needs to be considered ........ as pro mechanics we sometimes lose sight of this one and assume everyone else is at our skill level
I was going to post earlier but did not. This post gets to the crux. I have to say that, if one has to ASK if it's safe to make you own hydraulic plumbing, you've already answered the question. It is not rocket science by any stretch. But, the consequences can be high.
 

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I was going to post earlier but did not. This post gets to the crux. I have to say that, if one has to ASK if it's safe to make you own hydraulic plumbing, you've already answered the question. It is not rocket science by any stretch. But, the consequences can be high.
I can agree with that. I learned plumbing years ago from a certified A&P mechanic with an IA authorization. It's not difficult, but it requires that the procedure is followed exactly. But that's the way it is with any critical components. I did tech on racebikes for a good number of years, and you wouldn't believe some of the things I saw. I like to think I helped those who were just getting into racing. I'd be happy to help anyone here to do trackday or race prep on their bike.
 

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i would never take the risk

stay away from the titanium fittings and they won't brake your wallet :)

Koen
 

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I have ran Frem Tubo on few bikes they are ok but after switching to Spiegler I won't use anything else really nice lines, aluminum ends and stainless steel banjos are a great setup.
 

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Discussion Starter · #20 ·
I ordered a FrenTubo line last week and hope to get it next week. Thanks to Capri moto in Italy. It comes with fittings for a Staubli dry quick brake line connector. Will post some pictures when I get it!
 
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