Upgrading the front brake - Ducati.ms - The Ultimate Ducati Forum
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post #1 of 13 (permalink) Unread Jun 27th, 2019, 5:35 pm Thread Starter
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Upgrading the front brake

I am planning on installing the Brembo RCS Corsa 19 mm for the front brakes on the 2019 hyper.


https://www.brembo.com/en/company/ne...-brembo-brakes


Stay tuned for a review!


Last edited by Pard; Jun 27th, 2019 at 6:57 pm.
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post #2 of 13 (permalink) Unread Jun 27th, 2019, 7:32 pm
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I'll buy your old OEM unit if you are to sell it (and price is obtainable for me). I have the axial base master and been looking at upgrading to the 848,multistrada front master cylinders.
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post #3 of 13 (permalink) Unread Jun 27th, 2019, 7:48 pm Thread Starter
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Quote:
Originally Posted by araitim View Post
I'll buy your old OEM unit if you are to sell it (and price is obtainable for me). I have the axial base master and been looking at upgrading to the 848,multistrada front master cylinders.
I will let you know how it works out.
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post #4 of 13 (permalink) Unread Jun 28th, 2019, 8:59 am Thread Starter
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The master is on the way.

In addition to the master, a reservoir mounting solution is extra and required.

I ordered the dedicated brembo mounting kit. May be the way to go because my front turn signal bracket is shared with the reservoir bracket.

https://www.kurveygirl.com/shop/prod...roducts_id=604

And the Kurvey Girl Ladybird Bracket. Cooler looking, will require tygon hose.

Not sure which will work best.

https://www.kurveygirl.com/shop/prod...roducts_id=654

The RCS lever has a TWM aftermarket shorty blade available if that becomes an issue:

https://www.motomillion.com/products...nt=17730292611

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Last edited by Pard; Jun 28th, 2019 at 9:24 am.
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post #5 of 13 (permalink) Unread Jul 14th, 2019, 6:34 pm Thread Starter
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Installed the Brembo 19mm RCS Corsa Corta Radial Brake Master Cylinder

https://www.sportbiketrackgear.com/b...ster-cylinder/

Test ride tomorrow.

The OEM and CRG lever will stay on the shelf for now.
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post #6 of 13 (permalink) Unread Jul 15th, 2019, 7:35 am Thread Starter
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Took the hyper for a ride this AM with the new Brembo Corsa Corta 19mm master set at full race parameter settings.

The knob on the master body, labeled 1 in the attached pic, has 3 settings, normal, sport and race. It is supposed to allow adjusting the amount of slack from the initial pull of the lever. Normal has more slack, race has less.

If you are familiar with remote control vehicles, this seems to be similar to expo adjustment on a transmitter. See attached pic. Variability of dead zone before brake pads bite.
Expo hides deficient operator modulation from initiating a pull. No reason to be forced to have it, this master allows you to dial it out.

In race setting the initial pull provides brake bite feedback from the pads right away with the most miniscual lever pull.
The stock master has an initial dead zone that cannot be adjusted out. That mushy feeling, the need for a double pull or long pull before the pads react seems to be designed into the master on purpose. It is not designed for high performance riding, it is designed for the average rider IMHO. We are better than that.

In race setting that mushy phenomenon is gone.

This is very interesting because everyone blames the ABS system for the mushy feeling on initial pull, but it seems to be related to the design of the master.

Adjustment 3 in the pic below allows for 18 or 20 mm leverage settings.

The adjustment is to change the load point (master piston pin) between the fulcrum (pivot bolt) and the force applied to the lever and it changes the geometry of the lever pull.

At 18, the load (master pin) is closer to the fulcrum, so less force is needed to produce the same amount of power but you lose some modulation.

I like it a lot.

Some may find it too twitchy and having a firm feeling, but it is exactly what I was looking for.

I like to be able to build full brake pressure with little lever travel, and without too much force. This requires a fine touch. I don't need my lever to be mushy to prevent my misuse of the brakes.

With the slack gone, feedback comes through the tires to the bar into your hands giving you the information required to modulate the braking before the lever has moved much at all. Modulation is through adjusting finger pressure force, not travel.

With remote control electronics, this setting is similar to dual rates.

Some people like longer travel to help modulate pressure.

I will test that setting out tomorrow on 20. Load further from fulcrum, less power produced but greater modulation.

Adjustability is what you get with this unit. Great to be able to find what works for you.

Cool device!
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Last edited by Pard; Jul 16th, 2019 at 7:07 am.
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post #7 of 13 (permalink) Unread Jul 15th, 2019, 8:14 am
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...subbed ... great thread!
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Never Quit, Die Falling Forward
1996 900 CR. ... LOW ZOOT
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post #8 of 13 (permalink) Unread Jul 16th, 2019, 8:07 am Thread Starter
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The adjustment available on the lever allows you to place the load (master pin) at either 18 and 20 mm from the fulcrum. The system is a 2nd class lever, like a wheel barrow or a nutcracker lever. The closer the load is to the fulcrum, the less force and greater travel distance is required to lift or push the load a given distance.

At 18mm of the pin from the pivot, you can produce stronger braking force with less lever force. Better mechanical advantage.

At 20mm you require more lever pressure to get the same stopping force, but you need less lever travel.

I prefer the feel and action at the 18mm point.




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post #9 of 13 (permalink) Unread Jul 16th, 2019, 5:45 pm
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I love mine...installed it on an m821...It is full of adjustments....that race setting is no joke...your braking immediately!...you know that moment you first pull the brake lever...well in the race setting your already parked removing your helmet in the same span of time...lol... it is something to experience but if your not a hard breaker you might not even notice what the setting was all about...I'm happy...a bit pricey...the brake feedback is like taking the rubber end of a doorstop and cutting it in half...it's also got unbelievable modulation...I was going long into a guardrail...I was able to get the rear end back on the ground and modulate the brake for a beautiful roll out at the last possible moment...I suppose the ending really does justify the means...lol...so worth it!



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post #10 of 13 (permalink) Unread Jul 16th, 2019, 7:54 pm Thread Starter
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Nice save!
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