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  1. #21

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    I wanna do a proportioning valve on my bike running to the foot brake just to clean up the handlebars.

    Couldn't you also run a double brake lever (not even sure if they make one) on one side so you can squeeze them both or squeeze one or the other? Granted one would have to stick out a little further.

  2. #22
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    Quote Originally Posted by RayyyH View Post
    I wanna do a proportioning valve on my bike running to the foot brake just to clean up the handlebars.

    Couldn't you also run a double brake lever (not even sure if they make one) on one side so you can squeeze them both or squeeze one or the other? Granted one would have to stick out a little further.
    http://disabledmotorcyclerider.com/klever.html
    2 grand is a lil pricey

  3. #23
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    Thanks! It came together real nice. I just wish there was a way to have the lines ran individually from one master so if I lost front and still have rear or vice versa without having to spend a couple grand.
    Separate caliper with a separate foot pedal (or a separate left side handlebar master) since you need emergency stopping more than rapid downshifting to get home?

    You might use a stock master and replace the plunger with a longer rod to operate a small car or truck dual master cylinder. You could machine a mating flange for your modified stock master which so your dual master remains stock and cheaply replaceable. You could prototype all that on your workbench while using what you've already fabricated.

    You could bush the bore of the stock master since you'd be cutting the end off anyway, and use suitable diameter steel rod stock for the new operating rod to eliminate flex.

    Your proportioning valve would be handy to tweak the balance.

    An interesting go-kart dual master. Note the pivot design which could easily be fabbed opposite the pic for a pull lever instead of a push setup.

    http://www.hegar4.com/zc150/images/medium/DualMC1.jpg

    You could mock one up by bolting a brake lever to a hunk of plate then trying different cylinder setups.

  4. #24
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    Look at Jeff wrights "s&s 50th anniversary" bike. I believe he had a thumb actuated rear break lever mounted to the bars.

  5. #25
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    Quote Originally Posted by farmall View Post
    Separate caliper with a separate foot pedal (or a separate left side handlebar master) since you need emergency stopping more than rapid downshifting to get home?

    You might use a stock master and replace the plunger with a longer rod to operate a small car or truck dual master cylinder. You could machine a mating flange for your modified stock master which so your dual master remains stock and cheaply replaceable. You could prototype all that on your workbench while using what you've already fabricated.

    You could bush the bore of the stock master since you'd be cutting the end off anyway, and use suitable diameter steel rod stock for the new operating rod to eliminate flex.

    Your proportioning valve would be handy to tweak the balance.

    An interesting go-kart dual master. Note the pivot design which could easily be fabbed opposite the pic for a pull lever instead of a push setup.

    http://www.hegar4.com/zc150/images/medium/DualMC1.jpg

    You could mock one up by bolting a brake lever to a hunk of plate then trying different cylinder setups.
    my left side bar is open now since i moved the clutch to a suicide shift so i could run another master on that side. my clutch will be staying on the suicide shift but i am goin to be putting a pingel electric shifter on it because i dont like almost always having just one hand on my bars. man you got some great ideas and i like the go cart master. right at the moment i am chasing what i think is a lifter noise that is going to take up my time well hopefully not to much time cause i just got some fenders that i need to widen and radius that i am going to put on it also. i got a pretty big to do list with this thing.

  6. #26
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    You might use a bar mounted kill switch as backup for instant engine braking with both hands on the bars.

    Your end result will be different and complex enough that you should practice to make operation instinctive.

    The thumb brake is a neat idea popular with racers. Google "thumb operated master cylinder" etc for plenty of hits.

    https://rekluse.com/product/brake-kit-dual-actuated/

  7. #27
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