SRAM DUB English Bottom Bracket - English/BSA 73mm E-Type SuperBoost + Black CheckoutSpec= CrMo Rails - Purple Direct Mount Type Direct Mount

Direct Mount Type Direct Mount SRAM Tooth Count 36 Drivetrain Speeds 11 Drivetrain Speeds 12 Defined Color Black Material Aluminum Ring Position/Type Chain Retaining Single Ring Round or Oval Round Offset 3 Chainline/Hub Compatibility 141/148 Boost Hubs

The Kuat Piston Pro X Add-Ons can extend the capacity of the 2" version to carry 3 or 4 bikes total

They are designed to have an ultra-low stack height

297/299mm kit: fits TR280 Carbon 29 inch 32h

so the top of the shaft is lower

SRAM DUB English Bottom Bracket - English/BSA 73mm E-Type SuperBoost + Black CheckoutSpec= CrMo Rails - Purple Direct Mount Type Direct MountSRAM DUB English Bottom Bracket English BSA 73mm E Type SuperBoost + Black. The SRAM DUB bottom bracket series has a simple job to connect crankarms and protect the smooth long lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard simplifying crankarm compatibility. Designed for use with SRAM SuperBoost+ Cranksets Gutter Seal Technology drastically improves sealing