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Strum used 140mm SRAM Centerline rotors with her SRAM Force HRD flat mount calipers. Sarah Sturm's title-winning singlespeed Specialized Crux. 2018 Cyclocross National Championships, Louisville, KY. © A. Yee / Cyclocross Magazine

Strum used 140mm SRAM Centerline rotors with her SRAM Force HRD flat mount calipers. Sarah Sturm’s title-winning singlespeed Specialized Crux. 2018 Cyclocross National Championships, Louisville, KY. © A. Yee / Cyclocross Magazine