SRAM DUB BB30 Bottom Bracket - BB30 73mm MTB Boost 55mm Chainline Black MFPN=106074 Super-light outer plates with cut-out

Super-light outer plates with cut-out design

Bead Socket Technology for unmatched tubeless performance

}TruVativ Atmos 7K Stem - 70mm 31

MCU bottom-out bumper for end-stroke progressivity

SRAM DUB BB30 Bottom Bracket - BB30 73mm MTB Boost 55mm Chainline Black MFPN=106074 Super-light outer plates with cut-outSRAM DUB BB30 Bottom Bracket BB30 73mm MTB Boost 55mm Chainline 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 Boost cranksets with 55mm chainlines Gutter Seal Technology drastically improves