The Sram XX World Cup Disc brake marks the lightest edition to the XX brake family. An updated TaperBore design incorporates a new air-trap feature, which prevents potentially trapped air from entering the system, resulting in ridiculously smooth control you can count on.
Weaknesses: Constant squealing, seems impossible to stop this, pistons stick, brakes drag on and won't open enough when changing pads making it a nightmare to install the wheel.
Absolute garbage, 2 bikes fitted with Avids and they both have the same problems.
Sram should stick to transmissions as they can't make brakes.
Date Reviewed: March 8, 2013
Strengths: Light, looks
Weaknesses: Durability, power
Bought brand new from Chainreactioncycles.
Immediately after installation troubles with front brake started - stall, then just stopped working.
Pushing the lever did not bring any result.
First time I attached the lever to grip overnight with rubber band. It helped.
Than it stopped working again (eventhough I did not even ride the bike!). Hint with band did not work.
Brought it to service. Service guys dissasembled main cylinder, found a lot of dirt (????!!!) in cylinder and line.
Replaced braking liquid and some spare parts, now it seems working properly, but power is not really strong. Let's see how long it will last.
Very surprised to see that poor quality in top Avid product...
Date Reviewed: February 27, 2013
Strengths: The look
Weaknesses: Not brakes , completly unsafe , no reliable stopping power.crap at the highest price point
SRAM avid should recall all these dangerous breaks and a class action should be launched at they been told many times these are dangerous.
a Cross Country Rider
Date Reviewed: June 26, 2012
Weaknesses: Does not hold a bleed and need to bleed after 10-20 hours of riding.
In summary, these are total garbage brakes. SRAM swapped me to the 2012 world cup levers that supposedly fixed the bleed issue. It did not. Please stay away, can't say enough bad things about these brakes. Ended up switching to Formula and could not be happier.
These brakes came with the bike, I would not have purchased them. The lever will drastically change position throughout a ride have to adjust the reach. Stopping power is mediocre at best however, it did improve when swapping to organic pads. The pistons do not return well and need to be cleaned on a regular basis. I have had to adapt my riding style to adjust to the lack of control the brake system offers. SRAM needs to get a clue on their brakes, this is the real world, not a test track.
Weaknesses: Constantly have to bleed them. Lever keeps "sicking" and have tried everything. I figured if I bought the most expensive brakes from the Avid line, they would be perfect. I have rode them 4 times, but they have been bled 3 times already and still don't work correctly. rotors drag, even brand new ones, so I guess it's time to get a piston kit..WOW.
Would never purchase again, and probably never purchase Avid either. Having problems with Elixir's on my other bike.
a Weekend Warrior
Date Reviewed: December 3, 2011
Strengths: they are light
Weaknesses: sometimes lever goes to bar without stopping . usually on a sketch downhill . bled using avids u tube video , better for a few days then back to intermittant brake failure . avid / sram / rock shox has very bad quality control .
do not buy these brakes choose another brand (xtr , formula , magura) I wish i had . nothing like getting burned by worthless peice of junk bike parts that are advertised as the high end by avid and cost $$$$$.
Similar Products Used: xo , elixer , 7s , codes , magura marta , hayes , juicys ,
Bike Setup: ibis mojo carbon
Date Reviewed: October 22, 2011
Strengths: Lightweight, slick looking, nice feel\touch when feathering, good power with a 140MM rotor
Weaknesses: The factory pads shipped with this brake only lasted 1 6-hr race and a couple of training rides before the race before they were gone. After one minor laydown of the bike at low sliding spped where there was not a scratch on the bike, the brakes just stopped working for about the next 4 miles of riding. I had to keep pumping the lever and finally they started working again. Recently, the lever is now sticking after being pulled in, it springs back out but only after a delay due to the sticking. Price.
These brakes are light and look good but for the price the performance is just not reliable enough. I should not have problems after just a couple months of light duty usage. They must have comprimised to much weight for performance reliability. Stick with the heavier Avids for much less money.
Bike Setup: Large Titus Racer X with the full XX group, Stans Alpine Wheelset, CrankBros Cobalt 11 pedals and post, Fizik Tundra 00 saddle, RaceFace carbon 3/4 riser bars, Continental RaceKing Supersonics. Around 21-22 lbs.
Strengths: Very, very light. Good fit and finish. Nice looking.
Weaknesses: Will not hold a bleed. At all. These brakes work good when they are working. Which is about one to two rides before another bleed will be needed.
I bought what I thought would be "the best" and paid the asking price for "the best". Unfortunately, I have had nothing but problems with these brakes.
I started riding on them in February 2011 with the 2010 full XX group. By the first week of June they had been bled 7 times. LBS called SRAM. They sent me the new (2012) World Cup model at no charge. These were installed. First two rides they were great. Solid. Then the first bleed was needed after flipping the bike over for about one minute for some trailside bike service. Then a second bleed. After the third bleed I put two rides on them noting a slight decrease in performance. I parked this bike for about 10 days (upright) and went to go for a ride and the levers went right to the bars. These brakes lost nearly their entire bleed over ten days with NO usage.
STAY AWAY from these brakes folks, unless you have a full time mechanic at home that works for free or you like the "excitement" of not knowing if your brakes are going to work the next time you grab them during your ride.
These came stock on a new Specialized S-Works 29er HT.
I rode them for one month and noticed some sticking in the lever so back they went to the LBS.This was right before winter struck and my LBS said bring them in and we will get them set up correctly.They've been there evr since.
No problem SRAM send new brakes.
LBS sets them up and the new ones are worse than the old ones.
SRAM then sends new brake lines saying this was the problem with XX brakes all along.
BS!!I go to LBS to find the left lever is still sticking and needs a new piston.ON BRAND NEW BRAKES THAT HAVE NEVER BEEN RIDDEN.
I asked the LBS to tell SRAM I wanted credit to buy some Formula R1s.And now this is hilarious.After all this the idiot at SRAM has the lack of brains to say,"why would he not want the best brakes on the market"!!What a dildo.
How about this,I want brakes that work and are reliable.
Is that asking so much?
Never buy these brakes.They have to be the worst high end brakes on the market.
Do yourself a favor and go buy some Formula R1s and enjoy your riding.
I have never in 20 years of mtn biking this crappy of a product and this inept service.
Bike is STILL at shop awaiting another brake lever.
I now have ONE brake that works.
Maybe by Spring the morons at SRAM can get another one that works correctly.
I am guessing it is a O.E.M. take off from a bike but I thought all the new forks had that metal plate that the race sits on ? I have never seen this in black with the old style hydraulic hose tab either and it is dual air.
Can anyone take a stab at it ?
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How many people out there has had problems with their Avid/ SRAM XX World cup brakes? I'm on my second set, warranted the first front and rear set for instantly going away without warning, resulting in a hard crash and a near miss on the road,told that was a 2011 problem. I got the 2012 models, gues ... Read More »