The shimano xtr trail m9020 11 speed chainset crafted from the most advanced materials and engineered with the latest innovations in drivetrain technology this shimano mtb chainset is super light stiff and transfers power like nothing yoursquove ever seen before it features a new integrated design that makes installation and adjustments easier than ever for hassle free application and features duralumin crank arms for supreme strength the unique dynasystem pulls every aspect of