Sram:

The new 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 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.

FEATURES
One oversized spindle to work across every bottom bracket standard.
Greater bearing durability
Easy installation
Threaded internal cups for integrated look

SPECIFICATIONS

BB-frame interfaceT47 (Road and Road Wide) 68mm, T47 (Road and Road Wide) 77mm, T47 (Road Wide: 85.5mm), T47 (Road: 85.5mm)

Crank-BB interfaceDUB

Bearing typeCeramic, Standard

Spindle diameterDUB

Spindle lengthn/a

Chainlinen/a

Support E-type FDn/a

Cup materialAluminum