The PG 1070 Cassette's semi-spidered design maintains a high level of shifting performance with a matched cassette/chain combination that runs near silent.
Cassette design for high shifting performance with a quieter chain/cassette combinatio
Semi-spidered design: light, strong, efficient
Weight: 210g (11-23)
Recommended chain: PC-1091R, PC-1091, PC-1071, PC-1051, PC-1031
Recommended Group: SRAM Force, SRAM Rival