RaceFace Narrow Wide Chainring: Direct Mount 3-Bolt Compatible 32t BlackRaceFace Narrow Wide Chainring: Direct Mount 3 Bolt Compatible 32t Black. Narrow Wide Direct Mount 3 Bolt Chainring7075 T6 aluminum aerospace grade strength Stiff 4mm plate thickness to transfer loads without flexing TECH SPECS Ring Position Type Chain Retaining Single Ring Tooth Count 32 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 3 Chainline Hub Compatibility 135 142 MTB Hubs