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Old 03-03-2012, 09:28 AM   #1
biggus OP
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Rear Hand Brake

Has anyone fitted a rear hand brake onto the 950 and maintained the foot lever?

There have been a few occasions that I wished I had one on the 500 pound beast.

Is there something already manufactured or would I need to buy the parts and pieces to make it work? Would it work?
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Old 03-03-2012, 02:04 PM   #2
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I have fitted plenty to the EXC models. The biggest challenge is pressurising the rear master cylinder without blowing out the sight glass. Would need a new rear master cylinder lid with a tube that connects a banjo on top of the lid to the very bottom of the master cylinder, with an O-ring to seal it from the reservoir as there is no need for a reservoir at the footbrake cylinder, just at the left hand rear brake.

Here is the adapter for the 04 onwards EXC, The original reservoir lid screws on, so this also screws into the reservoir bot seals tight to the master cylinder inside


the 99 to 03 EXC uses a remote reservoir, similar setup to the 950/990 Superduke. So the LHRB connects to where the remote reservoir used to go, but with a high pressure banjo connection

it is probably easier to adapt the SuperDuke rear master and use the SuperDuke single piston rear brake caliper.
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Old 03-14-2012, 02:11 AM   #3
biggus OP
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And I thought it would be easy...

Would it be possible to use a hydraulic clutch set up with the brake line all the way to the rear caliper and double up the banjo bolts? Would the pressure back feed into the rear master cyclinder?
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Old 03-14-2012, 09:04 AM   #4
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Quote:
Originally Posted by biggus View Post
And I thought it would be easy...

Would it be possible to use a hydraulic clutch set up with the brake line all the way to the rear caliper and double up the banjo bolts? Would the pressure back feed into the rear master cyclinder?
Yes, lots of people have tried that one without thinking it through ;)
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Old 03-14-2012, 12:35 PM   #5
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Rekluse makes kits for dirtbikes, not sure if one of those could be made to work. Not cheap though.
http://rekluse.mybigcommerce.com/cat...ted-Brake-Kit/

You might also look at companies that make stunt parts for sportbikes. Rear hand brakes are popular in that world as well.
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Old 03-14-2012, 03:18 PM   #6
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Originally Posted by slo rider View Post
Rekluse makes kits for dirtbikes, not sure if one of those could be made to work. Not cheap though.
http://rekluse.mybigcommerce.com/cat...ted-Brake-Kit/

You might also look at companies that make stunt parts for sportbikes. Rear hand brakes are popular in that world as well.
That master won't work. Here's what I did. Note that I am running a Rekluse clutch, with brake line going DIRECTLY to the rear caliper, you could retain the foot pedal by running a line from LH master to a double banjo at the foot master.









BREMBO RCS16 RADIAL MASTER CYL. with SHORT BREMBO LEVER. RIZOMA REMOTE RESERVOIR. 7' BRAKE LINE. CUSTOM PERCH FOR STOCK CLUTCH MASTER. MIDWEST SHORTY LEVER.

With the rekluse, the clutch is rarely needed, and is reachable with one finger.

Hope that helps.
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Old 03-14-2012, 03:38 PM   #7
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Please excuse me, I'm just curious.
Why would you need an extra control for the rearbrake?
Certainly not for normal dayriding. Is it for some kind of slow gnarly trail riding? But that makes no sense with the 950...????

cheers,
Matthi

DasMatti screwed with this post 03-14-2012 at 04:05 PM
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Old 03-14-2012, 04:26 PM   #8
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Quote:
Originally Posted by Riddler990 View Post
That master won't work. Here's what I did. Note that I am running a Rekluse clutch, with brake line going DIRECTLY to the rear caliper, you could retain the foot pedal by running a line from LH master to a double banjo at the foot master.
Absolutely NO!!!
You cannot simply use a double banjo at the rear caliper or master cylinder. All that would do would pressurise the reservoir of the master cylinder you were not using at the time. Think about it, when the master cylinder is in the unbraked position, the port to the reservoir is open to the brake line. Thats why you can push the caliper pistons into the caliper. So if you apply pressure to the brake line from another master cylinder the easiest path is into the other reservoir.
Thats why a modified master cylinder is required, to allow a through flow of fluid from the other master cylinder.
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Old 03-14-2012, 05:22 PM   #9
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Contact Ryan at http://www.50stunt.com/. He may be able to help you
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Old 03-14-2012, 07:03 PM   #10
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Quote:
Originally Posted by Peanuts View Post
Absolutely NO!!!
You cannot simply use a double banjo at the rear caliper or master cylinder. All that would do would pressurise the reservoir of the master cylinder you were not using at the time. Think about it, when the master cylinder is in the unbraked position, the port to the reservoir is open to the brake line. Thats why you can push the caliper pistons into the caliper. So if you apply pressure to the brake line from another master cylinder the easiest path is into the other reservoir.
Thats why a modified master cylinder is required, to allow a through flow of fluid from the other master cylinder.
I agree, it is something I couldn't get my head around either, BUT, the fact is the rekluse LHRB kit has an option to set it up this way, with an optional banjo bolt and braided line. Maybe you should give them a call and see what they say.

Dasmatti, excuse not needed. It's a personal thing I suppose. My 530 exc is set up with a Rekluse and LHRB, it is like riding a mountain bike, MUCH more control on steep descents, easier to load the rear suspension through whoops, MUCH smoother application of rear braking force. It boils down to rear braking control for me, have you ever tried to stop these big bikes in a hurry? it really doesn't happen without locking the rear (in dirt). The LHRB produces a much better braking "feel".
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Old 03-14-2012, 08:19 PM   #11
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Quote:
Originally Posted by DasMatti View Post
Please excuse me, I'm just curious.
Why would you need an extra control for the rearbrake?
Certainly not for normal dayriding. Is it for some kind of slow gnarly trail riding? But that makes no sense with the 950...????

cheers,
Matthi

700 pounds of bike, rider, and luggage.
Sharp right hand turn.
Sand and rocks in a ravine with a steep descent...

Try to keep that thing balanced when you HAVE to use the rear brake to keep from accelerating to a crazy speed

The Mojave Trail - Dropping off a river bank and into the bottom...

What will you do? What WILL you do?


What I would have given for a LHRB at that moment



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Old 03-14-2012, 08:47 PM   #12
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They make them for roadracing (hydraulic) I had one on my Yamaha TZ250, I think it was a Brembo....Anyway it is pretty common, or more common, with roadracing so you might want to try searching there too..
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Old 03-14-2012, 11:24 PM   #13
Riddler990
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Quote:
Originally Posted by spafxer View Post
700 pounds of bike, rider, and luggage.
Sharp right hand turn.
Sand and rocks in a ravine with a steep descent...

Try to keep that thing balanced when you HAVE to use the rear brake to keep from accelerating to a crazy speed

The Mojave Trail - Dropping off a river bank and into the bottom...

What will you do? What WILL you do?


What I would have given for a LHRB at that moment



.
Damn Jim, I think you just earned yourself a very rare DV Rally sweatshirt.
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Old 03-15-2012, 02:53 AM   #14
biggus OP
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Looks like a nice set up you have there Riddler990. I would really like to keep the rear foot brake. That seems to be where the problem lies at the rear master cylinder. I will have to look at the Rekluse set up.

I see some of those Stunt Bikes are running dual rear calipers to use a hydraulic LHRB, isolating the hand brake from the foot brake.

I was thinking and that gets scary. What about a cheap old cable hand brake? Run the cable to the rear master cylinder and fabricate a bracket that would retract the piston of the master cylinder when actuated. The fixed part of the cable could be mounted above the master cylinder on the inside of the frame and the cable itself could be attached to the adjustment rod of the master cylinder with another bracket. In theory when pulling the hand brake the cable would retract and pull the piston into the master cylinder.

Is my thinking correct? Has this approach been thought of before?
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Old 03-15-2012, 05:05 AM   #15
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Clake brake is the only ones making the set up your after for the big Katos. Rekluse dont make the adapter

to suit the Brembo rear master cylinder $1300Au will get you a Clake with the lot.
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