Wolf Tooth Direct Mount Chainring - 42t, SRAM Direct Mount, For SRAM 3-Bolt, 6mm Offset, Drop-Stop B, Flattop Compatible, BlackDirect mount chainrings for SRAM cranks with 8 bolt mounting replace your existing spider and chainring with one clean looking, lightweight, and stiff piece of machined billet. Specifications: Direct Mount Type: Direct Mount SRAM Tooth Count: 42 Drivetrain Speeds: 9 Drivetrain Speeds: 10 Drivetrain Speeds: 11 Drivetrain Speeds: 12 Defined Color: Black Material: Aluminum Ring Position Type: Chain Retaining Single Ring Round or Oval: Round Offset: 6