Brakes Dual disc brake hubs and forks

Since Fabian hasn't been seen for a while I'll say that AFAIK he was just looking for better cooling. He rides with a trailer and a heavily built bike in the dryest continent (so probably has some water in the trailer) and was experiencing brake fade.
That makes sense, if you have to stop a heavy load going down hill sure, you want REALLY GOOD brakes.

I have seen Fabians 'Train Bike', it did what it needed to do at the time for him.
 
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A brake caliper would be mounted turned around on the right side, so the actuator was on the outside of the rotor. This just lifts that caliper system to the proper hight so the pads bed in the rotor correctly and at the right angle.
Yeah that's what I thought, with the caliper flipped over it would require a different shape adapter, and this is it. Still needs the right right side IS mount on the fork of course and there's not many of them around.
 
Yeah that's what I thought, with the caliper flipped over it would require a different shape adapter, and this is it. Still needs the right right side IS mount on the fork of course and there's not many of them around.
I see them all the time, they look like nuts and welding rods at the hardware store.
 
I see them all the time, they look like nuts and welding rods at the hardware store.
I only meant there's not many forks with a right hand side International Standard 2000 (IS) disc brake caliper mount!

So you mean that you can just make one from nuts and weld it to any fork? I don't think it's quite as simple as you suggest.

Even just measuring can be a PITA. :rolleyes:
I'm trying to work from the caliper back to the fork but it isn't easy keeping the caliper still because of the stiff hose. I don't want to remove the hose at the caliper end (this often turns out badly). I have taped it on now but really it is hard to know exactly where it wants to be. There's only supposed to be a knat's hair clearance inside so the rotor edge doesn't scrape the caliper body. I might try again with paper wrapped around it. Perhaps I should have stuck with the old Hope C2 #3 that had much more clearance than the Shimano XT m785.
I am using a 3mm steel plate brake mount from an old scooter, modifying it to bolt to the FS mount. Work has stopped until tomorrow so I can make loud grinding noise.
I should be able to get at least one brake on this fork. It won't look pretty but I think it can work. :)
Then it should be simple to get the same thing on the right side.. for those who want to.
 

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Squeeze the brake onto the rotor with a brake lever and it will be centered on the rotor correctly, turn the wheel until the brake assembly comes to the frame. Level it out carefully and adjust its seat. Once it's set get a friend to continue squeezing the lever. You mark and measure so if you mess up its not their fault.

Put it together and ride.
 
Well, it's on there but I'll probably be doing it again because there is actually some flex in the 3mm thick steel plate. I will have to drill new IS mount holes and use the appropriate IS-PM 203 Shimano adapter, instead of this concoction of homemade IS+43 plate and IS-PM 160 adapter.
I also found (even without braking force applied) that the 3mm plate brings the caliper slightly too close to the spokes and there isn't enough outward adjustment in the PM slots to centre the caliper over the rotor, so I did a lot of grinding and filing to get it "perfectly" lined up.

Do NOT use Stupid Shimano XT precision engineered bloody racing brakes haha, there's no clearance for doing the build by hand. Be sensible and use Hope C2 #3 if you're going to mess around with a homemade adapter plate. :confused:
(Hope C2 #4 I think is the one that actually mounts direct but that limits you to I think a 165mm rotor.)

I'm Definitely leaving the right hand side for someone else.
Anyway here are the pictures of my LEFT side +43 mount for the dual disc mount Marzocchi Z1 1997 that I already know isn't the final version. :rolleyes:

IMG_20170311_010536.jpg

IMG_20170311_010758.jpg

Sorry the photos are sideways and I have no idea why.
 
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