Included in the delivery are 7 sprockets and one spacer. The kit also includes a distance spacer (7-S) to convert the standard freewheel for 7-speed cassettes. The system is compatible with the SRAM 7-speed groups. No XD freewheel is required! The cassette is compatible with all 10 & 11-speed chains.
Translation: 11-12-13-13-15-17-17-19-21 teeth
Build: cassette Number of Gears: 7 Compatible: Shimano, Sram