Sram:

SINGULAR FOCUS. BETTER SOLUTION.
The new SRAM DUB bottom bracket series has a simple job-connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, we’ve engineered the DUB spindle to be the one true unifying component. One oversized spindle to work across every bottom bracket standard. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.

THINGS TO REMEMBER
One oversized spindle to work across every bottom bracket standard
Gutter Seal Technology drastically improves sealing against the elements
Significantly lighter than GXP system

FEATURES AND BENEFITS
Gutter Seal Technology
Sealed cartridge bearings
ISO 4210 compliant. See Declaration of Conformity for details.

SPECIFICATIONS
BB-frame interfaceEnglish/BSA 100mm, English/BSA 73mm, English/BSA 83mm
Crank-BB interfaceDUB
Bearing typeStandard
Spindle diameterDUB
Spindle lengthn/a
Chainlinen/a
Support E-type FDn/a
Cup materialAluminum, Steel