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.
Compatible with ISIS cranks (sold separately)
Size: 68/73 x 113mm
Weight: 300 grams