Thomas D.wrote a review of Shimano XT BL-M8000 Disc Brake on March 24, 2017
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.