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Offline I Zombie

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dual disk
« on: August 13, 2008, 04:27:07 PM »
Anybody do a dual disk brake coversion?
Lookz like it would be eazy enough, the mountz are all there.
Should just be a matter of coming up with the partz?
On my 78 CB750k, it lookz like you could use the left bracket & caliper just reversed?
I know it'z prorbably not that cut & dry but..........
Am i nutz or am i onto something?
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Offline mystic_1

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Re: dual disk
« Reply #1 on: August 13, 2008, 04:29:12 PM »
Go here and enter "dual disk":

http://forums.sohc4.net/index.php?action=search

mystic_1
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Offline I Zombie

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Re: dual disk
« Reply #2 on: August 13, 2008, 04:57:25 PM »
thanks
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Offline Godffery

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Re: dual disk
« Reply #3 on: August 14, 2008, 08:56:05 AM »
Yes; You flip the left hand stuff over, but you will also need to take about 1/8" off the bottom (larger of the 3) mount on the fork ear.

   If you want to keep the Speedo drive you will have to have the back of the right hand disc machined to accept the drive.  Even then it's still tight.

 http://springvinmoto.com/gallery/album85/Twin_Disc_1
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Offline MCRider

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Re: dual disk
« Reply #4 on: August 14, 2008, 01:18:00 PM »
Quote from: Godffery on August 14, 2008, 08:56:05 AM
Yes; You flip the left hand stuff over, but you will also need to take about 1/8" off the bottom (larger of the 3) mount on the fork ear.

   If you want to keep the Speedo drive you will have to have the back of the right hand disc machined to accept the drive.  Even then it's still tight.

 http://springvinmoto.com/gallery/album85/Twin_Disc_1


Your example appears to be a CB550, correct? The thread is about a CB750 on which one would modify the speedo drive plate, not the disc. Modifications can be done with a bench grinder, or hand grinder of some sort, and vise or vice grips.

Maybe that would work on the 550 also? Don't know.
At the bottom of page one of this thread is an example of the modification http://forums.sohc4.net/index.php?topic=37258.15
and in the middle of page 2 is a picture of one I ground down and one I had made by a machinist.
« Last Edit: August 14, 2008, 01:22:39 PM by MCRider1 »
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Offline Godffery

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Re: dual disk
« Reply #5 on: August 14, 2008, 05:11:32 PM »

   Yes you are right, it is a 550. I was thinking that were the same, but I see that the 750 hub has 2 Small flats that allow for the method shown in the other thread.

Good to know, It looks easier to mod.


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Offline I Zombie

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Re: dual disk
« Reply #6 on: August 15, 2008, 06:04:43 AM »
thankz guyz
you're all very helpfull & god knowz i'llbe needing it!!!
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