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CB550F Double Disc's

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Ewan 500 K1:

--- Quote from: trigger6969 on April 22, 2014, 07:50:36 AM ---Ewan, I have the same hub as showing in your post. 

--- End quote ---

Then I think you just need to make the one on the right into the one on the left,
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CMSNL are out of stock of the original part http://www.cmsnl.com/products/retainer-gear-box_44641300000/

Mount the mudguard bracket BETWEEN the fork and the brake pivot arm bracket and you wont need any shiming or shaving. You'll need some goldwing disc bolts. Less sure about the master cylinder , but I had a goldwing one (retangular kind) to hand anyways so used that.

You might also find that the speedo cable rubs off the new disc so will needd to do summat about that.
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Trigger:
Seems straight forward Ewan. Have loads of bolts in stock, was going to use some 110mm 8.8.

Ewan 500 K1:

--- Quote from: trigger6969 on April 23, 2014, 10:46:34 PM ---Seems straight forward Ewan. Have loads of bolts in stock, was going to use some 110mm 8.8.

--- End quote ---

Maybe need to be Jap spec for smaller diameter head size (12mm ) ... or was it a shallow enough head depth to allow the bolt heads to clear under the speedo drive ... was one or the other or maybe both ;)

.. also was advised not to use stainless bolts as they cant take the shear stresses

John W did a conversion recently and had to do a bit of shimming ... but think he mounted the mudguard braket ON TOP of the pivot arm bracket ? .. also (strangely ??) John had to take some material off the disc to allow the standard 44641-300-000 speedo drive plate to fit. I never had to do that to my modified one. 

Also, there's two versions of the speed drive plate that has the lugs that fit in the chrome cover ( ie the one I modified). One is solid and one is a two part one with the two parts joined with rubber. I used the former to make my equivalent 44641-300-000.. if I recall correctly I seem to remember seeing somewhere that you cant use the two part one to modify to a 44641-300-000 shape (maybe because the heat from the grinder would melt the rubber ?? )

Trigger:
No rubber Ewan, looks spot on to yours. I think m8 x 110 high tensile steel bolts should be up to the job.

Bryanj:
All i used eons ago, wing ones might be prettier as they are polished/chromed

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