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Shimano Ultegra CS R8101 Cassette 12 Speed, 11 30t, Silver mtb components Breathability 10 12056 501 WhtBlkOrg 30.5 Breathability 10 Best For Strong touring skiers up to 120 kg who want TÜV certified release from 5 to 12 The Shimano Ultegra CS R8101 road cycling cassette in 11 30T delivers 12 speed performance for riders building or upgrading to Shimano's current generation road drivetrain The tighter 11 30T range keeps gear steps close for criterium
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