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1400 GTR - A beast


2010 dual link brakes

Started by Kwikasfuki, December 17, 2009, 11:54:47 PM

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Kwikasfuki


Tempted to buy the 2010 model for the traction control and the dual link brake setup. Had this on the Honda Varadero and it was one of the best safety features. At the same time they may have resolved the warped rotor issues.
Find the forum useful? Please think about donating<br /><br />Kawasaki 1400GTR 2009 - 2012<br />Honda XLV1000 Varadero  2007 - 2009<br />Suzuki DL650 V-Strom 2005 - 2008<br />Kawasaki GPZ 500s 2004 - 2005<br />Yamaha SR125 2003 - 2004

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The linked brake system is quite sophisticated but it took a lot of research to find out how it actually worked (see below).  It has its advantages but I can't help thinking that I'd be happier if I was in control not some computer.  Too soon to say whther the occasional rotor problem is cured.  They don't look any different.

2nd Generation K-ACT (Kawasaki Advanced Coactive-braking Technology) ABS
K-ACT (Kawasaki Advanced Coactive-braking Technology) ABS enables riders to execute controlled, balanced braking. Designed to complement riders' applied brake force, K-ACT ABS ensures ideal brake force distribution to maximise braking efficiency.
An evolution of the K-ACT system first seen on the 2009MY VN1700 Voyager ABS, this 2nd generation system makes use of a smaller, lighter K-ACT ABS unit (approximately 25% smaller and 30% lighter) and a higher-spec brake ECU capable of more detailed calculations, which results in even smoother operation.  Rider actuation of the front brake lever and/or rear brake pedal causes brake fluid to act directly on caliper pistons as in usual brake systems. Pressure sensors (one for the front brake master cylinder, and one for the rear) detect the amount of braking force the rider is applying.  Then, taking into account the vehicle speed at time of initial brake application, the brake ECU determines the amount of corresponding brake force necessary for maximum braking efficiency. A motor in the control unit operates front and rear fluid, increasing pressure to the front right caliper (based on rear pedal application) and/or rear caliper (based on front lever application) as necessary.  Two more pressure sensors (one measuring front right caliper fluid pressure, the other measuring rear caliper fluid pressure) also provide feedback to the brake ECU.
Like most ABS systems, K-ACT ABS is ON all the time. However, in keeping with this model's concept, K-ACT ABS settings are sportier than those used on the VN1700 Voyager ABS.
On the GTR, riders can opt to choose from one of two modes to suit riding situation or rider preference. While front brake lever effect on the rear is the same in both modes, the effect of rear brake use on the front brake is quite different. Standard Mode: (reduced K-ACT effect) - rider control is prioritised - linked effect is reduced at initial pedal stroke for natural sensation when riding in the hills
High Combined Mode: (enhanced K-ACT effect)
•   more pronounced linked effect from the beginning of pedal stroke
•   ideal for touring/riding with passenger/highway use (Please note that after a given pedal stroke, the K-ACT effect for both modes is the same.) Desired mode can be selected using the K-ACT button on the left grip.
K-ACT ABS also incorporates an anti-lock braking function to help prevent the wheels from locking up during hard braking in a straight line.
For maximum controllability in tight corners and when executing U-turns, K-ACT ABS's coactive function does not engage when braking is initiated at speeds below 20 km/h (12 mph). The ABS function is disengaged at speeds below 6 km/h (4 mph).