Wolf Tooth Direct Mount Chainring 30t RaceFace Easton CINCH Direct Mount Drop Stop B For Boost Cranks 3mm Offset BLK MFPN=F9903 }Zipp Vuka Evo 70 Extensions }Zipp Vuka Evo 70 Extensions 22 TravelStar compound for handling characteristics and Double Defense technology for weigh savings with extremely robust construction Color Black Ring Position Type Chain Retaining Single Ring Tooth Count 30 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD Direct Mount CINCH Offset 3 Chainline Hub Compatibility 141 148 Boost Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount CINCH width:142px