PowerSpline Bottom Bracket Options:TruVativ PowerSpline Bottom Bracket - English (BSA), 68 x 113mm Matchmaker and I-Spec EV clamping

Matchmaker and I-Spec EV clamping options included with post

Water resistance is paired with best-in-class breathability for hard efforts

the Sirrus X excels on pavement

and more of it than ever before possible

includes SRAM XX1 11-speed freehub and 148 end caps

PowerSpline Bottom Bracket Options:TruVativ PowerSpline Bottom Bracket - English (BSA), 68 x 113mm Matchmaker and I-Spec EV clampingThe 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