【brembo】17RCS Corsa Corta Brake Master Cylinder Review
Fits: YAMAHA YZF-R1, YAMAHA YZF-R6, KAWASAKI ZX 14 R, KAWASAKI H2R, DUCATI 1103 V4 Panigale, TRIUMPH Street Triple RS 765, MV AGUSTA F4 1000 LH 44, MV AGUSTA F4 RR 998, KTM 1290 Superduke R, DUCATI X-Diavel S, HONDA CBR 1000 RR SP, DUCATI Multistrada 1200 S, DUCATI Monster 1200 S, DUCATI 1299 Panigale, DUCATI Monster 1200, DUCATI 1260 S Multistrada, DUCATI 1199 Panigale, DUCATI 1199 Panigale Superleggera, APRILIA Tuono V4 R 1000, APRILIA Tuono V4 RR 1100,
Genuine Brembo 17RCS Corsa Corta Master Cylinder
One of my customers is going to out this bike on the track so I went to work on the braking system. One of the first things I wanted to change was the annoying stock master cylinder. Obviously, Brembo was the way to go. I decided on this one as it fitted with the specs of the bike in mind. Finding the correct master cylinder was not hard but there were a few choices but I went for this one, the 17RCS Corsa Corta in the end. It had all the requirements I needed so it went in my basket. I had a few other parts and the shipping was reasonable for what I had. EMS got my order to me in 5 days. The master cylinder came with the standard stock lever length which was perfect for my needs. It is the 18 x 20 one so works good with teh floating calipers on the bike anyway. It came in the Brembo box and also came with a few copper washers. I had already sourced the HEL line that would make this all work. The master cylinder is a real piece of kit and fitted really well with the bike and the instrument cluster I was leaving in situ. Not a hard job once you have all the parts together. This master cylinder is awesome and so much better than the stock one. Oh and by the way, looks the nuts. There are just so many adjustments that you can definitely find the right setting for your liking. I do like the 18 ratio and H pivot setting. Very pleased with this part. Thanks Webike for the great service you provide.
Responses
Other reviews
Operability Up
Replacement from NisshinOEM.
From the initial touch, the softness of the touch is softer and the more you hold it in, the more it works, and I felt that the operability is much better than before.
I even regretted wearing it and wished I had changed it earlier.
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Installed on a 2021 MT-09SP
Yamaha's MT-09SP has a Cruise Control function, which seems to be different from a normal switch, and even if it can be installed mechanically, there seem to be many problems such as the Stop-lamp staying on electrically or errors related to the cruise control. I was thinking of asking a shop that knows about it, but they seemed to be busy, so I did it by myself for now.
I should have measured the voltage and other parameters properly to make a corresponding product, but I am an amateur electrician and I am relying on Net information without much understanding of the situation.
The banjo adapter can be used as it is by simply adjusting the installation direction, and only the banjo bolt was additionally purchased with a brembo compatible Pitch 1.0 short. I purchased a short Pitch 1.0 bolt for the brembo.
(Fluid tanks are not included and must be purchased separately.)
I had been removing the brake area of the MT-09 four times to bleed the air out, but the air did not bleed out and it took 2 to 3 days to return to the original touch, so I was not very good at this work. I was impressed that the touch came back and it was as expected from brembo.
Next, the problem is switch related. MT-09SPOEMSwitch uses two switches, and each switch is turned off when Lever is pulled from the always-on state.
The switch that came with the CORSA Corta is ON when the Lever is pulled, so I replaced the switch to match the OEM operation.
On the crucon side, some people had installed a switch on top of the switch, but I was not confident that I could install it properly, so I tried to turn off the crucon by linking it with the Brake switchWiring, which is always on, via Relay.
Relay from Brake switchWiring may affect other devices, but this has not been confirmed.
The Stop-lamp is now turned off when the lever is pulled, and the cruise control is also turned off in conjunction with the brake switch, but the position where the brake switch is activated is too far away, and when the cruise control is activated, the cruise control accelerates even though the brake is decelerating. This is a very dangerous situation, so there is room for improvement.
The best position is where the Brake starts to be applied, but it is a bit high even at the same height as the attached Switch, so it needs to be adjusted, but it is quite difficult because it seems to need adjustment in 0.5mm increments with the Silicon sealant.
*I may keep the crucon sealed for a while, or maybe only use it 2 or 3 times a year….
As for my impressions of Master Cylinder, everything I had been dissatisfied with in OEMBrake is now to my liking.
I feel like I have a wider range of input when applying Brake and it is very easy to Control.
I wanted to replace it sooner, but the Switch problem was not solved and I had to leave it for almost a year after purchase.
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Brembo master
I was interested in CORSA Corta's RatioClickSystem and purchased it. Since it is a change from the OEM bremboSemi-radial master, I did not notice much difference in BrakeTouch on my level of touring rider. However, it is easier to use as a result of the more detailed settings such as lever play, ratio, distance, and so on.
In my case, the Brake Caliper's Brake Caliper Piston is a 30mm Small diameter Piston, so the most comfortable setting was a R→Ratio of 20mm, so I think Billet's Racing master would have been fine.
I installed it on my NinjaH2. (External Handlebar, Zita Light HandlebarShort12° used, OEM is 9°) However, if the lever is too wide, you may feel it, so if your palm is too large and the lever is too far away, you may need to take measures such as using a Handlebar Up Type. If you have a large palm and the lever is too far away from the handlebar, it may be unnecessary to use the Handlebar Up Type.
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Performance as expected
The same diameter 4pot × 2, so I chose 17RCS recommended by the manufacturer.
About installation
Since OEM is also OEM brembo, I was able to use the brake switch, oil tank, and Banjo bolt as is.
The hose of the oil tank needed to be replaced because of the change in the handling.
I was satisfied to find my favorite Fee Ring from 6 different settings.
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