Shimano XT BL-M8000 Disc Brake


Building off the smashing success of Shimano's XT BR-M785B Disc Brakes, the Shimano XT BL-M8000 Disc Brakes offer enhanced ergonomics with their sleek integrated master cylinder and simple integration with I-Spec II shift levers. Not only does this improved design shave precious grams, but it also frees up valuable real estate along the handlebars, which is always a positive with the ubiquitous use of dropper posts on modern trail bikes.

Sero Wave technology delivers reliable stopping performance across widely variable trail conditions and riding disciplines. This technology improves brake engagement by closing quickly upon first squeeze, ramping up power after initial engagement for improved bite. 22mm ceramic pistons inspire riders to push their limits with gobs of stopping power at a moment's notice. Shimano's Radiator Pads disperse heat on shuttle runs and lift-accessed downhills, preventing dreaded brake fade on lengthy descents. Tool-free reach adjustment dials in a custom feel for precise trigger actuation.

The Shimano XT BL-M8000 Disc Brakes come with everything needed for installation. This brake kit works with Shimano's XT and XT Ice-Tech Rotors for reliable stopping performance in all conditions. Hinged, split clamps allow for easy mounting. The pre-bled lever/caliper/hose assembly is ready for installation on your favorite trail bike.

  • Integrated master cylinder design
  • I-Spec II shift lever integration
  • Sero Wave technology
  • Tool-free reach adjustment
  • 22mm ceramic piston
  • Shimano Radiator Pads
  • Comes with hinged, split clamps
  • Pre-bled lever/caliper/hose assembly
  • Reviews
  • Q & A

Great Brake. Pre-Bled?

  • Familiarity: I've used it several times

I paired this XT front brake with an XTR rear. It may be slightly heavier, but it has great modulation and plenty of stopping power for my cross country/trail style of riding.
I ordered the pre bled and left the hydraulic line intact because I do not like to bleed brakes. Unfortunately, it needed to be bled. I called Backcountry, who sent me on to Colorado Cyclist, for advice or an exchange. They told me to bleed the brakes, all I had to do was push fluid from the caliper to the handle. So now I have to buy some hydraulic fluid. That didn't do the trick, however, so I had to perform the full bleed procedure. Now it works well, but it was a frustrating process.

Great brake set

  • Familiarity: I've used it several times

I have both the old m785s as well as these. The new model has a much more linear feel to braking — versus the old which acts a lot more like an on/off switch. The levers feel very nice in hand as well.

Amazing Brakes

  • Familiarity: I've put it through the wringer

I’ve been using XT brakes for a while and the newest version are the best to date. From the updated caliper to the solid master cylinder these work flawlessly and look great. These also still use the same pads from the previous version. These are the best brakes you can buy for the price.


    After fighting SRAM Guide brakes for months I made the switch and couldn't be happier. These are dependable and predictable offering great modulation. Easy maintenance and setup is perhaps the best perk of these brakes.

    Super reliable

    • Familiarity: I've put it through the wringer

    The major benefit to these brakes is that they are reliable. They generally run quiet and are low maintenance. There is no shortage of braking power; these are strong brakes. My only complaint is the modulation. They feel a bit grabby to me. Some people like that feeling though so it does come down to preference. The bleeding procedure is simple which is nice.

    Solid Stoppers

      Solid engagement and ample power makes these a solid set of brakes.

      Reliable brake

      • Familiarity: I've put it through the wringer

      They are very reliable so you don't have to worry about issues or failures. My only complaint is they don't have much modulation which gives them more of an on or off feel.


        Good reliable and very smooth. Look no further

        These are the BEST

          I love my xt brakes. They have good adjustability and modulation. Reliable too

          The best brakes on the market!

          • Familiarity: I've put it through the wringer

          I have been through 4 sets of SRAM Guides, all of them have failed. I finally switched back to XT, and I have no idea what took me so long. Do yourself a favor and buy these brakes, they are easy to setup, rarely fail, and work tremendously.

          Shimano Breaks

          • Familiarity: I've put it through the wringer

          You should only buy these on your bike. They are the best and I will always have XT breaks.

          Killer Brakes

            Love the simplicity and quick reaction of XT brakes. They are fairly simple to maintain as well. 5 Stars!!!

            Best brakes I've had

            • Familiarity: I've used it several times

            What to say here - these XT's are as good as I've had. Over the past several years, I have had the terrible Avid Elixir 5's, (bleeding is a regular occurrence, and it's difficult to get right) swapped those for the predecessor to these - the XT M785's. Loved those. Had the Avid X0 Trail brakes on another bike which worked well, but never had the modulation that the Shimanos offer. These M8000's are great. I shortened both front and rear hoses easily, bled them, and went riding.

            Great adjustability, great modulation, and they are super reliable. Easily the best investment in the MTB brake world right now on a pure performance per dollar basis. Great price and service from Backcountry.

            Best brakes for the price-point

            • Familiarity: I've put it through the wringer

            Shimano brakes are simple, cost effective, and easy to maintain. Newer, sexier options are available but these tried and true brakes just keep working!

            These brakes are worth every dime!

            • Familiarity: I've put it through the wringer

            I cannot get over how great these brakes are, especially when paired with the Ice-tech rotors!.
            I run these brakes on my 29er and I do alot of hard riding on Rocky terrain with steep hills, and I relie on my brakes alot. and these brakes will lock on a dime but u can also feather effectively!

            if you ever experience squeling with these pads, nail on the brakes at around 20 or so mph, two or three times, cleans it right up.

            Great brakes! Requires a lot of setup

              Yes, these are excellent brakes! But you probably already know that.
              I ride a Medium MTB (Niner MCR) and the hoses on these brakes were waaaaaay too long. I knew they'd be longer than what I've got, but not +12" longer (the front brake wasn't so ridiculously long, but the rear was 16" too long). So after you purchase these brakes, go to Epic Bleed Solutions, buy their bleed kit, hydraulic hose cutters, and 8mm spanner. I recommend them because they also have a detailed step-by-step on how to cut your new Shimano brake cables (hopefully) without needing to bleed your brakes. But if something goes wrong, you will need to bleed the brakes, so have a kit on standby. Anyone with the right tools can cut the hoses, it doesn't take special skill. But it is tedious, and anytime I'm risking adding air to my hydraulic lines I'm sweating bullets.
              Bottom line, excellent brakes for a good price! But these pre-bled brakes are only plug-and-play if you're a big rider.


              • Familiarity: I've put it through the wringer

              It used to be that XT brakes were pretty much the only trustworthy brakes available. Nowadays there's actually a lot of great, reliable options. However, great to see the XTs are staying relevant as well. Same old reliability, feel, and power as always. They definitely do not have the best modulation out there, but plenty to work with once you're used to them. Like any hydraulic brake they take some maintenance to continue to work well. If you own ANY hydraulic brake I would highly recommend investing in the bleed kit and taking the time mastering the bleeding process, it's worth it.

              *Opinion* Best brake for the price.

              • Familiarity: I've put it through the wringer

              Easy to set up with exceptional lever feel. I even prefer the over xtr models.

              Pump em to work

              • Familiarity: I've put it through the wringer

              Started having problems with them where they pulled all the way to the bar on the first stroke so you had to pump them to engage solid! Easy fix right just needs bled, Did that and new pads and they go to the bar and you have to pump em-now the bike shop talked to the Shimano rep and he says that's ok-the shop worked the Shimano forums and they are all complaining about this problem with these brakes. I cant recomend these now that Shimano has a design issue and they admit it.

              Yet another 5 star

              • Familiarity: I've put it through the wringer

              Been riding mountain bikes at a high level for 23 years...tried every cool brand made for every part of the bike...In the end I also learned not much reason to buy anything other than Shimano XT for any drivetrain/brake part on the bike. They work flawlessly, awesome quality, always improving...and these new xt brakes? Lever perfect size and fit, the new clamp allows for attaching other things to the bar...and of course amazing braking power.