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  1. #1
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    Default TECH: Make a hidden/remote master cylinder

    Hello all,

    Thought I would document how I set up my remote master cylinder setup for my VLX600. I am no expert by any means so there may be better ways to do this. As usual, i take no responsibility for what you do to your bike. This is simply documenting what i did.

    1. Purchase used master cylinder on ebay (I spent $30 on an 09 Goldwing rear master cylinder with a brake sensor so i could remove the wiring from my bars)(ensure to pick a suitable size, do your research)
    2. Purchase levers (i bought 2 x SKU 007582 from Lowbrow)
    3. Find a cable ( I used a stock VLX600 clutch cable and clevis from the stock clutch arm) (Do NOT use throttle cables, they are not thick enough)
    4. Spend a stupid amount of time recreating the same brackets over and over with slightly different measurements until it works for your setup.
    5. Weld to frame, paint, and follow the tiny reservoir how-to
    6. You'll end up with something along these lines. It works great and doesn't feel noticeably different from stock.

    IMG_20180211_141501 by huviduc, on Flickr
    IMG_20180211_170512 by huviduc, on Flickr
    IMG_20180211_170519 by huviduc, on Flickr
    IMG_20180309_173537 by huviduc, on Flickr
    IMG_20180506_163636 by huviduc, on Flickr
    IMG_20180608_153918 by huviduc, on Flickr

  2. #2
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    Default

    Damn man, great job on this! This will be very helpful to many people. Good looking bike too.

  3. #3
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    Quote Originally Posted by bobberadam View Post
    Damn man, great job on this! This will be very helpful to many people. Good looking bike too.
    Thanks man! Hopefully it'll help someone. I searched a lot prior to doing this and there isn't a lot out there with working pictures.

  4. #4
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    Default Backbone Brakes

    WOW! I can vouch for step #4. The old adage 'Measure twice - cut once' is so much bullshit here! I spent a week trying to get it where I liked it! Here's something I'm doing for my softail.


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    Attached Thumbnails Attached Thumbnails IMG_5032.jpg   IMG_5031.jpg  
    Last edited by 04Nighttrain; 08-03-2018 at 8:53 AM. Reason: adjust pics

  5. #5
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    Quote Originally Posted by 04Nighttrain View Post
    WOW! I can vouch for step #4. The old adage 'Measure twice - cut once' is so much bullshit here! I spent a week trying to get it where I liked it! Here's something I'm doing for my softail.

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    Nice man! should be a good place to hide it. Yeah i think i made each part 4 or 5 times. I may even go back and redo them in aluminum or stainless so they dont rust.

  6. #6
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    How does it perform for you? I'm worried that I'll need Kung Fu muscle grip to work the lever.

  7. #7
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    Default

    Quote Originally Posted by 04Nighttrain View Post
    How does it perform for you? I'm worried that I'll need Kung Fu muscle grip to work the lever.
    I honestly havent noticed a difference yet. It definitely isn't any harder to squeeze

  8. #8
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    It shouldn't be since the arm has mechanical advantage over the piston. For experimentation one could make an arm with multiple holes.

    Lever classes explained:

    https://www.school-for-champions.com...s_classess.htm

  9. #9
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    Default

    Quote Originally Posted by huviduc24 View Post
    Hello all,

    Thought I would document how I set up my remote master cylinder setup for my VLX600. I am no expert by any means so there may be better ways to do this. As usual, i take no responsibility for what you do to your bike. This is simply documenting what i did.

    1. Purchase used master cylinder on ebay (I spent $30 on an 09 Goldwing rear master cylinder with a brake sensor so i could remove the wiring from my bars)(ensure to pick a suitable size, do your research)
    2. Purchase levers (i bought 2 x SKU 007582 from Lowbrow)
    3. Find a cable ( I used a stock VLX600 clutch cable and clevis from the stock clutch arm) (Do NOT use throttle cables, they are not thick enough)
    4. Spend a stupid amount of time recreating the same brackets over and over with slightly different measurements until it works for your setup.
    5. Weld to frame, paint, and follow the tiny reservoir how-to
    6. You'll end up with something along these lines. It works great and doesn't feel noticeably different from stock.
    That is one slick mod! And great looking bike. How about a diagram with some measurements to give those who want to go this route a jumping off point?

  10. #10
    Diogenes415
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    Default

    1970s BMWs had a nice compact cable actuated master cylinder that was mounted under the tank so that may be worth looking out for on the used/salvage parts market... or a design worth inspiration at least.




    The lever arm's length can also be shortened yet retain a good MC to caliper ratio for good brake feel if the master cylinder's piston is one or two sizes smaller.
    Last edited by Diogenes415; 09-30-2018 at 6:58 AM.

  11. #11
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    Default

    Quote Originally Posted by Avon View Post
    That is one slick mod! And great looking bike. How about a diagram with some measurements to give those who want to go this route a jumping off point?
    i can try to get rough measurements one of these days

  12. #12

    Default

    Quote Originally Posted by 04Nighttrain View Post
    WOW! I can vouch for step #4. The old adage 'Measure twice - cut once' is so much bullshit here! I spent a week trying to get it where I liked it! Here's something I'm doing for my softail.


    Click image for larger version. 

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Views:	13 
Size:	288.2 KB 
ID:	86218
    Click image for larger version. 

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    What master cylinder did you use?

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