SRAM 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
SRAM 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.
| Bottom Bracket Shell I.D. | 42 |
| BB/Frame Interface | BB30 |
| BB Shell Width (mm) | 73 |
| Spindle Interface Type | SRAM DUB |
| Defined Color | Black |
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