Truvativ Power Spline Bottom Bracket Review Posted by GiantPandaisy May 22, 2018 in Drivetrain Components Power Spline bottom bracket with CrMo axle and Alloy Cups Alloy Cups 327 grams Power Spline bottom bracket with CrMo axle and Alloy Cups Cycling Outdoor Recreation Parts & Components Sports & Outdoors Truvativ