SOHC.co.uk Forums > CB500/550

Double disc conversion

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Yoshi823:

--- Quote from: Sesman on August 02, 2021, 05:54:23 PM ---Shim the spring and place the locknut on the inner fork side. Not a pleasant solution, but effective. In the long term I’ll get a mate to run me up a special, longer item.

--- End quote ---

I did that shown in the pic back in 1981 on my commuter CB550F1. When I sold the bike I transposed the double discs to my wife's CB550F2

Bro550F:
Maybe it's been asked before, but obviously with a twin disc conversion we're looking for better stopping power. Well has anyone changed the master cylinder for a more modern one ??

Johnwebley:

--- Quote from: Bro550F on August 31, 2021, 05:17:55 PM ---Maybe it's been asked before, but obviously with a twin disc conversion we're looking for better stopping power. Well has anyone changed the master cylinder for a more modern one ??

--- End quote ---


  you normally change the MC for one from an early goldwing,

 they look the same,but have a larger bore to suit twin calipers.

 commenting on the spring issue,

  I left out the springs ages ago,they are not needed,

and a countersunk  screw should be available at any good engineering store,

Bryanj:
If you use the see through GL 1000 one you get a micro switch for brake light and canput the second caliper hose where the hydraulic switch goes

Sesman:
Hi, Oddjob.

No, but have found a supplier. I’ll  post next week as currently charging through France.

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