Replacing front master cylinder, what do I need to know

[DrImodium]

OK so this is a 2 part question:

Im finally got my clip-ons, switches and grips in the mail for my GS1000 cafe but now Im looking to replace the clutch lever and the front master cylinder. I will be running GS1k spokies but Im unsure about my brake setup. Is it possible to keep the dual disks in the front when using the spokies or do I have to go down to one?

When replacing the master cylinder, what do I need to look for to make sure that it will work with my brake setup? I want to run something like this:

or like this:

My plan is to retrofit a gravity feed oil reservoir from industrial machinery to act as the reservoir an make it unique. This is the reservoir I have in mind for the front:

Im not worried so much about retrofitting the reservoir, more so making sure I get the right master cylinder "unit(?)" and then tackling the retrofit after I get the original piece to work. I dont understand what the specs mean when i look at aftermarket units and Im not sure which ones can be used from other bikes. I would like to keep everything metal of some sorts since everything else on the bars is going to be metal and plastic free.

So, anyone have any advice or information?

 

[salty_monk]

As long as you have the right fork legs you can run dual discs with spoke wheels. On some wheels you may have to run a tap into the rotor holes on the one side but they're there....

No problem running that master cylinder - you're looking for one with a 5/8" bore which is just about every dual system out there that I've seen regardless of year....

 

[DrImodium]

As long as you have the right fork legs you can run dual discs with spoke wheels. On some wheels you may have to run a tap into the rotor holes on the one side but they're there....

How do I know if I have the right fork legs? AFAIK, they are the stock ones that came on my 78 GS1000e

 

[salty_monk]

If they are the dual rotor ones (should be on an E) then you're fine... The single rotor C model had caliper mounts on only one leg....

 

[lordcannon88]

OK so this is a 2 part question:

Im finally got my clip-ons, switches and grips in the mail for my GS1000 cafe but now Im looking to replace the clutch lever and the front master cylinder. I will be running GS1k spokies but Im unsure about my brake setup. Is it possible to keep the dual disks in the front when using the spokies or do I have to go down to one?

When replacing the master cylinder, what do I need to look for to make sure that it will work with my brake setup? I want to run something like this:

or like this:

My plan is to retrofit a gravity feed oil reservoir from industrial machinery to act as the reservoir an make it unique. This is the reservoir I have in mind for the front:

Im not worried so much about retrofitting the reservoir, more so making sure I get the right master cylinder "unit(?)" and then tackling the retrofit after I get the original piece to work. I dont understand what the specs mean when i look at aftermarket units and Im not sure which ones can be used from other bikes. I would like to keep everything metal of some sorts since everything else on the bars is going to be metal and plastic free.

So, anyone have any advice or information?

what site did you get the first picture off of? thats exactly what im looking for too.