To take full advantage of the power and promise of the SRAM Force groupset, you need a cassette and chain that are up to the task. With the new PG 1070 Cassettes semi-spidered design, we have maintained the high level of shifting performance while creating a much quieter cassette/chain combination.<p> New cassette design for high shifting performance with a quieter chain/cassette combination.</p><p> Semi-spidered design: light, strong, efficient<br /><br />PG-1070<br /><br /></p><li>Weight: 210g (11-23)</li><li>Speeds: 10</li><li>Recommended Chain: PC-1091R, PC-1091, PC-1071, PC-1051, PC-1031</li><li>Sprockets on Spider: 3</li><li>Lock Ring Material: Forged 7000 Series Alloy</li><li>Sprocket Material: Heat-Treated Steel</li>