Twinpot Brake upgrade on 78 Skunk

[Peter#1266]

Hi Salty Monk, I have borrowed your ideas of the Honda disks and Concours calipers to uprate the front end of my GS1100GK. As you will know the GK has fatter forks and wider trees than everything else. I didnt have to shim the disks at the hub, and using the original Concours brackets with some extensions welded on (certified welder, crack tested) located the calipers spot on over the disks. Used the Concours span adjustable m/c as well. Picture over at the "what did you wrench on today" thread. Thanks for the inspiration.

[salty_monk]

Looking good! Thanks for posting up the part number of the discs / rotors

[JT1306]

Thanks!

The discs are new EBC discs (EBC MD1014X) and then just enlarged the holes to 8mm. I liked the look of the gold discs against the black wheels which I have also mirrored with the rear shocks. I've added the master cylinder off a 2010 Kawasaki ER6 so should be a pretty solid braking setup.

I'm keeping all the images stored and will provide a full build thread once I've got nearer completion, hopefully early next year.

[steve murdoch]

Welcome to the site, JT.
The discs look new. Are they from a ZX10 as well?
How about starting a thread with your build info in the "Projects" section.

Just a quick post of thanks to salty_monk and everyone for their tips on this thread. Installed a set on my 79 GS550, with calipers from a 88 ZX10, cafe racer build and they are a great modification. After about 6 months of work the engine went in last weekend. Wiring and brake lines left to install and should be back on the road soon.

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[JT1306]

Just a quick post of thanks to salty_monk and everyone for their tips on this thread. Installed a set on my 79 GS550, with calipers from a 88 ZX10, cafe racer build and they are a great modification. After about 6 months of work the engine went in last weekend. Wiring and brake lines left to install and should be back on the road soon.

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[salty_monk]

I’ve had a few people ask so I just wanted to bump this thread to say that I do have sets of brackets on my shelf currently.

[salty_monk]

I just wanted to let everyone know that I do have the new style (option of 2 caliper styles) on my shelf. Powdercoated black as usual

[salty_monk]

PM's back at ya & yes you can get rid of the splitter...

[Bigthal97]

Ive got a 1977 GS750 single dics I'd like to do a brake upgrade on. I'm already looking at a 5/8" nissin lever/mc with braided hoses... i just rebuilt the front caliper and new pads. Would just the nissin mc and steel lines give a decent jump in performance by itself to run the stock rotor and caliper for a while since i just redid it? Also since its got a single disc couldn't i just run a direct to the caliper and get rid of the dumb splitter block for a better feel and a little more direct performance

[salty_monk]

If it’s 5/8” piston then it will likely be fine.

[kwikonit]

Using m10 to suit the current new brackets? You use the top hanger bolt on the fork slider to mount the top bolt hole on caliper correct? So the bottom caliper mount can stay m8? Just curious how your mounts work as i didnt actually use your first gen brackets to mount the zg1000 calipers...I suppose you'll have to modify the brackets you have already made? I have a newer 2010ish nissin master cylinder that id like to use, not sure if it will work with the ninja tokico calipers....

[salty_monk]

Not yet. I have a set on hand and at first glance I can say it might work but it will be a lot more work to fit.

The bolt holes are not the right size (they are M8 not M10) so the body will have to be drilled out and re-tapped to M10 fine to suit.

I will likely have a go at it some time over the next few weeks. It will be critical for the holes to be tapped square otherwise the caliper will not be perpendicular to the rotor (or you won’t be able to get the bolts in / might strip out the threads).

[kwikonit]

Hi, any news on testing the '17 and up calipers?

[salty_monk]

2005-2016 I believe. I haven't tested all years obviously but I believe they are all the same.

[kwikonit]

Hi, what yrs ninja 650 calipers will work with your new brackets? Thanks