Shimano FC-M9000 Chainring, 28t, for 38-28t Review Posted by GiantPandaisy June 26, 2018 in Drivetrain Components This fits your . Make sure this fits by entering your model number. 28 teeth BCD 64 mm 2×11 speed for 38 – 28 T DynaSys11 HG-X11 Chainring FC-M9000 / 9020 28T 64mm 11 speed Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors