SRAM Bottom Bracket DUB PressFit 30 (MTB) 83mm R1 is our highest performing design

is our highest performing design for aero efficiency and crosswind stability

The C13 chain is a vital element of the Ekar mechanical groupset

and PET(E) Free biodegradable plastic

Stable tripod design folds down small for travel or use at the races

the Dura-Ace R9270 cockpit is the benchmark for precision

SRAM Bottom Bracket DUB PressFit 30 (MTB) 83mm R1 is our highest performing designThe new SRAM dub bottom bracket series has a simple job to connect your crankarms and protect the smooth, long lasting application of power to your drivetrain. To allow that singular focus, SRAM have 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