Shimano SF-1200 16t Freewheel for 1/2″ x 1/8″ Chain Review Posted on July 22, 2018November 9, 2018 By ArchSeaLionPosted in Drivetrain ComponentsTagged Cycling, Outdoor Recreation, Parts & Components, SHIMANO, Sports & Outdoors This fits your . Make sure this fits by entering your model number. SHIMANO : SF-1200 FreeWheel 1/8×1/2 16T Shimano article number I-SF120016