SRAM X-Sync Steel Direct Mount Chainring 28T Boost 3mm OffsetThe SRAM X SYNC STEEL 1x chainrings are the perfect replacement ring for the cost conscious with added durability of steel. The same SRAM X SYNC technology at a lower price. Compatible with all SRAM 1x cranks Product Specifics Tooth Count: 28 Round or Oval: Round Drivetrain Speeds: 10 Drivetrain Speeds: 11 Direct Mount Type: Direct Mount SRAM Defined Color: Black Ring Position Type: Chain Retaining Single Ring Offset: 3 Chainring BCD: Direct Mount