SRAM BB DUB BSA Size:68/73mm Road MTB, 73 Road Wide D4 reigns king atop downhill

D4 reigns king atop downhill podiums and freeride events across the globe

The Reserve 30|HD is designed to be put through its paces and come out unscathed

INTEGRATED TOOL ORGANIZATION5

while the side pockets give you somewhere keep your hands toasty when you stop

Our aviation style gauge is 2

SRAM BB DUB BSA Size:68/73mm Road MTB, 73 Road Wide D4 reigns king atop downhillThe 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,