SOHC.co.uk Forums > CB500/550

twin disc conversion

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Johnwebley:
ok,update coming,

forks arrived,they must have been for a 550k,so the slider was the same length as my 500.,
think the internals are different,but I am expecting to just fit on my existing stanchion,and use same springs and internals,

disc ordered,

and caliper,bracket hoses,etc

I intend to use a double length banjo to join the brake pipes,so I don't need to worry  about brakelight switch,

hopefully the new bolts,and speedo drive mods will go OK

Yoshi823:
I fitted twin discs to my commuter 550F1 & they made the world of differance. I also drilled the discs & used a set of Vesrah pads on one side & Ferodo pads in the other caliper. This was so that, in the rain it would act like a single disc but in the dry like twin discs. I used a standard 550F2 master cylinder with Aeroquip lines feeding to both calipers directly from the splitter under the headlight.

Sorry I can't post up any pics atm but photobucket say I need to upgrade my account as i've used all of my bandwidth this month  >:(

Johnwebley:
starting to get all the bits together,

cleaning and checking


 ordered new master cylinder ,and various seal ,

servicing caliper,

HINT !!
a broken piston ring is perfect for cleaning the seal groove in the caliper !!!!!

more posts as I go along


Johnwebley:
lower r/h fork changed,caliper mount sorted,needed a little work to make the arm swivel smoothly,

only about  85mm between r/h and l/h mountings,means I need to remove bolt to fit wheel !! and refit after,

is this normal ??

Ewan 500 K1:

--- Quote from: Johnwebley on September 11, 2013, 02:40:43 PM ---lower r/h fork changed,caliper mount sorted,needed a little work to make the arm swivel smoothly,

only about  85mm between r/h and l/h mountings,means I need to remove bolt to fit wheel !! and refit after,

is this normal ??

--- End quote ---

Hi John, the distance between the r/h and l/h bottom pivot arm mounting bracket bolts on mine is 86mm. I can just squeeze the 100/90/19 tyre past them , but only when deflated. The caliper on one side does have to come off first though

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