The M6000 is the latest model from the Deore groupset to have been released. The whole groupset as a whole is hard to find on MTB’s, but the drivetrain and brakes are used regularly on 27.5" and 29" MTB’s. The complete groupset includes, derailleurs, cranks, shifters, brakes, cassettes, bottom brackets and hubs. These components from Deore are mostly preferred by riders with MTB’s who ride on harsh and fast paced trails leisurely or occasional racing.