The Shimano Ultgera CSR8000 1128T11spd Road Cassette is built for performance particularly in combination with other components from the Ultegra series The highperformance gear combinations provide superior rider choice helping to turn you into a precision instrument when on the saddle The combined use of carbon aluminium and steel in this cassette provides an amazing balance between efficient power delivery and weight saving This is truly a musthave when building or kitting out a professional level racing bike Key Features 11Speed 1128T 251g Weight HGEV 11speed HGX 11speed Chain Compatible CarbonAluminium Spider Arm Steel Sprockets Aluminium Lock Ring

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