SRAM DUB BB30 Bottom Bracket - BB30 83mm Road Cannondale Ai 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.Gutter Seal Technology™ drastically improves sealing against the elements
Sealed cartridge bearings
One oversized spindle to work across every bottom bracket standard
Significantly lighter than GXP system
- TECH SPECS
| Defined Color | Black |
| Bottom Bracket Shell I.D. | 42 |
| Spindle Interface Type | SRAM DUB |
| BB Shell Width (mm) | 83 |
| BB/Frame Interface | BB30 |