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post #1 of 11 (permalink) Old 01-05-2008, 01:28 AM Thread Starter
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brake upgrades

I want a little advice here, I'm thinking about putting some different brake calipers and rotors on the CB, now that I'm probably going to keep it.

I know I can put a second caliper on, the fork is set up with all the mounting holes on the right to add a second caliper and rotor, I just need to figure out how to put it on. likely I'd need a CB750 wheel with the holes for the 2nd rotor, but not positive on that.

other than that, and drilled rotors to help vent the gases that are produced in braking, what can I do to improve my stopping power? any suggestions?

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post #2 of 11 (permalink) Old 01-05-2008, 01:39 AM
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You may need a bigger master cylinder to allow you to push the extra amount of fluid and force you are going to need for the added caliper. Your best bet may be to look for a complete system from a different bike that has the same measurements for caliper mounting on ebay.

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post #3 of 11 (permalink) Old 01-05-2008, 01:55 AM Thread Starter
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I have a larger master cylinder to cover that aspect, I'd LIKE to make it look as stock as possible, but stopping power is more important than looks in all reality.

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post #4 of 11 (permalink) Old 01-05-2008, 06:47 AM
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I'd bet you could find a complete front end pretty cheap... Back in the day those bikes were like azzholes... Everybody had one...
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post #5 of 11 (permalink) Old 01-05-2008, 01:00 PM
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I remember seeing a set up with dual discs in a magazine several decades ago. As I recall, on one side the caliper was ahead of the fork, and on the other side, the caliper was behind the fork. They had just taken a fork with caliper and mounted the fork on the side without a caliper. Don't recall what wheel they used.

But why not get the brake you have up to at least 80's standards? Rebuild the master and caliper cylinders, 5.1 fluid, s/s line(s), and modern pads.
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post #6 of 11 (permalink) Old 01-05-2008, 02:36 PM Thread Starter
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NW, you make a good point. I'm looking for a lever to fit my larger master cylinder I have. I'd tried it before with the stock CB lever, and it made a huge difference, I just dont like the feeling of having a part that isnt completely right on there.

I"m not sure what pads to put on there either. stainless lines would look pretty stylin on there though.

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post #7 of 11 (permalink) Old 01-05-2008, 09:45 PM
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In 1979 and 80, Wes Cooley won the AMA Superbike title with a (highly modified) Suzuki GS1000. Here's a photo of my 79. In 1980 or 81, I put on Russell stainless brake lines. Normal rubber lines should be replaced every five years or so. I also put on Ferodo brake pads, which were the best at the time. I changed the fluid to silicone DOT 5, which was also the best at the time. I've changed the fluid since then, but the pads and lines are the same and work great.

I also put a Telefix fork brace on the spindly 35mm forks, and installed stiffer Progressive Suspension springs. When I got my CBR, I was going to sell the GS, but kept it. I'm glad I did. The Works Performance shocks were $300, but they transformed the bike. It would be creamed on a track, but I can keep up with modern liter bikes on twisty roads. Plus, it only has 54K miles on it. Your front brakes and suspension is a good place to start.
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post #8 of 11 (permalink) Old 01-05-2008, 10:29 PM Thread Starter
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I was actually giving suspension a LOT of consideration. the bike handles well as it is, but I know it could do better than it does now.

So far, my list of upgrades to be done goes:
drolled rotor(s)
new pads
progressive springs and heavier fork oil
clubman or dragbike bars
stickier tires

anything I'm missing?

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post #9 of 11 (permalink) Old 01-09-2008, 05:57 PM
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Quote:
Originally Posted by King Bob View Post
I was actually giving suspension a LOT of consideration. the bike handles well as it is, but I know it could do better than it does now.

So far, my list of upgrades to be done goes:
drolled rotor(s)
new pads
progressive springs and heavier fork oil
clubman or dragbike bars
stickier tires

anything I'm missing?
The drilled rotors are overkill, unless you get cheap ones on ebay. The master cylinder and caliper should be rebuilt. They probably make a kit with new O-rings. They are very simple; just a piston and O-rings. Teflon/stainless lines to the caliper and new pads will really improve braking, and you may not need dual discs. I put a K&N Superbike handlebar on my Suzuki. And I use Metzeler Lasertec tires on mine, but Avon also makes good bias/ply tires. Don't forget a new tube. You probably want to put in new fork seals when you take apart the forks.
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post #10 of 11 (permalink) Old 01-09-2008, 06:04 PM
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Quote:
Originally Posted by No Worries View Post
on one side the caliper was ahead of the fork, and on the other side, the caliper was behind the fork. They had just taken a fork with caliper and mounted the fork on the side without a caliper.
I was just thinking that.... grab an extra fork with the hanger on it and turn it 180 degrees.... should work, I would imagine...

Might need a couple little spacers or something, no big deal.
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post #11 of 11 (permalink) Old 01-09-2008, 08:47 PM Thread Starter
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I have the holes in the existing forks for brake calipers. I just gotta take the time to rebuild the forks, and put a caliper + rotor on. but I need a different speedo pickup.

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