TruVativ PowerSpline Bottom Bracket - English (BSA), 73 x 118mm 29" Active ventilation: Allows you to

Active ventilation: Allows you to open or close ventilation to modify the airflow and heat exhaust

Includes 3mm

Cushier foams and outside placement of the Talyn® ease adaptation

The Gravelier represents the pinnacle of pedaling comfort and performance for gravel riders who put in big miles at an expeditious pace

TruVativ PowerSpline Bottom Bracket - English (BSA), 73 x 118mm 29" Active ventilation: Allows you toThe SRAM PowerSpline bottom bracket features a proprietary spline design used with many OE spec moderately priced TruVativ cranks. Crank bolts are included Heat treated chromoly 12 spline spindle to make sure it can go the distance with even the most demanding riders