SHIMANO Single-Speed Freewheels Review Posted on July 29, 2018November 9, 2018 By ArchSeaLionPosted in Drivetrain ComponentsTagged Cycling, Outdoor Recreation, Parts & Components, SHIMANO, Sports & Outdoors Works with 3/32″ or 1/8″ chains BMX or single-speed, the Shimano Single-Speed bicycle freewheel is the industry standard.