Bottom Brackets

TruVativ's Howitzer XR M15 is a lightweight bottom bracket that is tough enough for all-mountain riding. Sealed, oversize cartridge bearings are used to provide smooth action and great durability. The Howitzer boasts CNC-machined aluminum cups and a chromoly spindle, too.

TruVativ Power Spline Bottom Bracket fits proprietary powerspline design popular as OE spec with many moderate-price TruVativ cranks. • Proprietary spline design popular as OE spec with many moderate-price TruVativ cranks • Crank bolts are included