'74 CB550 dual brakes? Yes, I'm serious!

B

Bakeoff

New Member
Everyone says this has been covered. I've been searching EVERYWHERE for a couple weeks trying to find good info. All I can find is info on 750's.

I have both calipers, mounts, lines, etc. The only thing I want a straight answer on is the speed sensor stuff. The plate that has the two tabs that normally lock into the chrome ring.... What the heck do you do with it? Shave it down so it fits inside the rotor....but how do you keep it firm against the hub so it doesn't rub against gear drive assembly or so it doesn't spin?
 
I think you're gonna have to pitch it and run a digital, or start looking at GL1000 front ends for appropriate parts.
 
So, I've looked and looked, but I can't track down that drive gear. What has anyone else done to get this setup done while retaining a speedo?
 
I've done that with three other sites, but they keep coming back saying it isn't available. Thanks though.
 
ebays your friend, and may be your only option.

give it time and things can be found, for cheap.

dont forget stainless lines, new pads, rebuilt calipers and master while your at it. also the master cylinder will need to be replaced with a larger one. if i were you i would get the rotors drilled also... decent amount of weight to be saved, but real advantage comes from wet braking power.


and remember... two disks doesnt mean MORE braking power, it means a longer time before the brakes fade.
 
i have the part you need but i am movng and all that shit is parked up pm me in a few days and ill dig it up
 
Use early 500 f or modify the one you have.
There is someone on SOHC4 making stainless steel speedo adapter to fit dual disc.
Search for 750 parts, the hub is same as 550
 
Ditch the stock speedo, and run a digital. Find one that runs off of magnets and problem solved.
 
Rocan said:
and remember... two disks doesnt mean MORE braking power, it means a longer time before the brakes fade.
Click to expand...

Rocan, can you explain this logic? I always figured another rotor would equal double the power given the same components in the system as a whole. With the same master your "feel" would definitely change since you added so much capacity to the system, but would it not be more powerful regardless of if the lever felt wooden or not? After all, you've doubled your pad swept area, or halved the work each caliper is doing.

It has been noted by a lot of people that the drilling really helps the wet weather performance more than it helps cooling them down and preventing fade. However, this would be better tested in strenuous testing, say racing. In overall performance, we're still looking at stainless disks that just don't dissipate heat as well as cast iron ones.

In any case, I've got this speedo adapter someone was asking about if someone wants some pics.
 
Rocan said:
and remember... two disks doesnt mean MORE braking power, it means a longer time before the brakes fade.
Click to expand...

Wha....huh? Ummm....yeah not.
Twice the swept area, twice the pad area and effectively twice the force applied (owing to the proper master cylinder size).....
Um...David, dunno who's feeding you this stuff but seriously man.....

no....really....huh?
 
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