SRAM DUB Wide PressFit30 Ceramic Bottom Bracket PF30 68 73mm Road Wide BLK Model=Doberman Keyed Color Black Ring Position Type Chain Color Black Ring Position Type Chain Retaining Single Ring Tooth Count 34 Round or Oval Round Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD Direct Mount Offset 3 Chainline Hub Compatibility 141 148 Boost Hubs Material Alloy Material 6061 Alloy Defined Color Black Direct Mount Type Direct Mount SRAM Zipp’s 303 Firecrest Carbon tubeless rims are designed for the real world… a world of imperfect conditions road surfaces and elements where the bottom line is simple Silky smooth without sacrificing robust seals required for real life durability MTB and racing scenarios font weight:600