CASSETTE SRAM PG-1170 FORCE22 11-SPEED 11-28 Sram CASSETTE SRAM PG-1170 FORCE22 11-SPEED 11-28 part name: CASSETTE SRAM PG-1170 FORCE22 11-SPEED 11-28part make model: SramCASSETTE SRAM PG-1170 FORCE22 11-SPEED 11-28bike part approved: