Sram:

The SRAM DUB bottom bracket series has a simple jobconnect 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.
• Easy installation
• Outboard and inboard cup options to support your bikes spec.
• Sealed cartridge bearings available in both stainless and ceramic versions

SPECIFICATIONS

BB-frame interface T47 (Road and Road Wide) 77mm
Crank-BB interfaceDUBB
Bearing typeCeramic, Standard
Spindle diameterDUB
Spindle lengthn/a
Chainlinen/a
Support E-type FDn/a
Cup materialAluminum