The 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 specification. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.

FEATURES:

One oversized spindle to work across every bottom bracket specification.
Gutter Seal Technology seals against the elements.
Significantly lighter than GXP system.
Sealed cartridge bearings available in both stainless and ceramic versions.

SPECIFICATIONS:

BB-FRAME INTERFACE BSA, English/BSA (MTB Ai: 73mm), English/BSA (MTB/Road: 68/73mm), English/BSA 100mm, English/BSA 68/73mm, English/BSA 68mm, English/BSA 73mm, English/BSA 83-A, English/BSA 83mm
CHAINLINE n/a
SPINDLE LENGTH n/a
SUPPORT E-TYPE FD n/a
CRANK-BB INTERFACE DUB
BEARING TYPE Ceramic, Standard
SPINDLE DIAMETER DUB
CUP MATERIAL Aluminum