SRAM DUB PressFit30 Road BB68 68mm Bottom Bracket - Black Category_Groupset The new DN300 battery features

The new DN300 battery features the same waterproof design that Di2 users have loved for generations

Heart Rate Monitor: HR40/HR60

DURA-ACE 7800 Series

The thick sponge layer will protect the wheels and frame for impacting each other

Breathable and wear-resistant

SRAM DUB PressFit30 Road BB68 68mm Bottom Bracket - Black Category_Groupset The new DN300 battery featuresDUB PressFit30 Bottom Bracket 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