If you're de-linking the brakes, DON'T run a s/s line to the rear.
The brake will lock up really quickly and you could lose control.

 

Mine was a Pre-CBS bike but NO - I never had an issue with the SS rear line.

A mate of mine with a CBS bike has it de-linked and found the rear end too much with all three pistons connected.
He ended up only using the front and rear pistons in the rear caliper and leaving the centre piston doing nothing.

Your alternative is to look out for the rear caliper and carrier bracket off an FK,FL or FM model bike

When I decide to mod my Blackbird - I'm going to stay with the CBS for now and just put SS lines up front where they will be felt.

I do agree with Shadow1 in part - There is less margin for error when running an SS line in the rear.

 

Hi Deano,

My bike has been de-linked. It has s/s on the front ( one to each caliper ) and the rear has all 3 pistons used. I thought it seemed a bit of an overkill...

I'm a bit worried now as per your mates bike. Lol... Don't wanna lock up on her maiden voyage in a few weeks.....

I'll have to let ya know how it goes.....

 

I've locked my rear up many times under heavy braking (1990 model) -with standard brake pipes.
The steel ones don't expand at all, so the braking effect is a lot more immediate and noticeable.
Deano certainly knows his stuff - but for me, I'd leave the rear alone and do stainless to the front. Just my 2c

 

I did some ratio calculations for the master cylinder to caliper and the numbers explain the problem.

Standard front master cylinder to CBS front caliper = 15.7:1 ratio

Master cylinder to de-linked front caliper using all three pistons = 23.3:1

Result = more lever travel but silly sensitive brakes and so easy to lock up.

Cure = 14mm master cylinder from CB1300 to correct the ratio.

Rear is the same - ratio goes silly when you link all three pistons and it is easy to lock up but pedal
travel is increased so the braking feels un natural.

Hope this helps

 

I have a 97 cbr 1100 xx blackbird that I am trying to delink the brakes. I am making the bike in to a street fighter. If any one can help me delink them I would love to know. I would love to do some standing burnouts or stopies but not realy possible with the LB S system on board my bike.

 

Have a look on the JAWS website. He has a full de-link kit available ( Set of stainless lines and a slave cylinder replacement bracket )

If you want very powerfull brakes - just link all three pistons in the front calipers. If you want about the same feel to the brakes but without the CBS then you also need a 14mm master cylinder up front.

For the back end - I would only link the front and rear pistons to the pedal - not all three.

 

Hi guys I found this old thread.
The problem is that I swapped my old hurricane with 96 model with (DCBS) LBS system but it is kind of delinked. I haven't checked it out very well as I haven't got too much time to ride her, but when i removed fairings all become clear to me. At least i think so
So The hose on right side that travels from back master cylinder to front is cut. From foot lever there only goes one hose to back caliper. And the secondary master Cylinder (on front left) in my opinion is just squeezed tight to fork. It seems to me that the so called secondary connecting system is empty - as there is no brake fluid. Is it possible? So as i understand on back caliper there only works center cylinder, and on front only two cylinders work on both calipers?
For my understanding I does not bother me, it can be like that but my concern is that clicking noise i get with heavy braking and when hitting a speed bump. At first i suspected some bearings but clearly the sound comes from the secondary master cylinder assembly.
I found a solution to remove the secondary master cylinder for good from

https://cbrforum.com/forum/cbr-1000f...g-brakes-4716/

but i am concerned that the cylinders that haven't been in use and if the system really has been dry for some time already, i mean the cylinders probably is pretty much stuck there with corrosion.
The biggest problem is with that clicking noise ( which i can actually feel with my hands also) Is that a concern and should i do something with it as ASAP or i can wait until November when we got meters of snow anyway?

And i understand that the back brake is over sensitive when all three cylinders are enabled? right now i think only center one is braking - anyway i need to use a lot of force to get it locked and the distance the lever is moving is really short - which makes also sense as the the ratio for only one working cylinder is a lot smaller so it needs a lot less fluid.

edit: just went and looked it through one more time. The secondary system is definitely empty. i could move the secondary master cylinder in front easily. The most strange is that i forgot to mention before is metal braided line coming from proportional control valve to back caliper - which is obviously empty right now. - what could have the reason to change that?

 

i'v combined brakes and love them.
they took a bit of getting used to,, but if you were taught to ride right, you should be setting up your corners better, entry and exit, and it will come to you.
the police here used these bikes for a few years along with the blackbirds,and i done advanced riding for the force,
nothing like knowing what to do when your being chased lol

wouldn't change them, and if i changed the bike, i'd like another with it fitted.

 

Yeah well i am pretty sure that if it works it works well, but in my case i am afraid that to make it work again i need one new hose, but also i need to open all the cylinders and clean them as they have been dry for who knows how long.

I think the easiest thing to do is just fix the left front caliper with appropriate metal bracket and IF the other cylinders are not totally corroded and stuck i can drill a hole in and use all three cylinders in front. The back one i still don't know as some guys here have said that having three cylinders on back wheel will lock it up very easily with only slight touch to brake lever.