SRAM DUB English Bottom Bracket - English/BSA 73mm MTB SuperBoost + Black ModelNumber=K9678 5mm 12/13-Speed 42t 8-Bolt Direct

5mm 12/13-Speed 42t 8-Bolt Direct Mount DUB Spindle Carbon E1

teeth 20t color red

under the arms

4" compound Addix Speedgrip bead folding type tubeless color black weight 980g

LiningPolyester 93%

SRAM DUB English Bottom Bracket - English/BSA 73mm MTB SuperBoost + Black ModelNumber=K9678 5mm 12/13-Speed 42t 8-Bolt DirectSRAM DUB English Bottom Bracket English BSA 73mm MTB SuperBoost + Black. The SRAM DUB bottom bracket series has a simple job to connect crankarms and protect the smooth long lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard simplifying crankarm compatibility. Designed for use with SRAM SuperBoost+ Cranksets Gutter Seal Technology drastically improves sealing against