Found a box of 2002 ISIS DH BB's tucked in the attic. Truvativ gives you the industry standard ten-flute design; a 25% increase in stiffness & twice the strength over traditional square-taper interfaces. The Spline technology creates a tight interference fit & rigid interface between crank & bottom bracket. <span></span><p></p> <p><span> </span></p> <ul> <li>68/68E/73 x 118mm</li> <li>Sealed angular contact bearings</li> <li>Alloy cup and body<span></span></li> <li>Heat-treated CrMo ISIS axle<span></span></li> <li> </li><li>Weight 315 grams</li> <li>Thick walled spindle requires M12 bolts </li> <li>73Emm shell - Use BB with E-type Derailleur or CG chainguide</li> <li>73mm shell - Use BB with Spacer </li> <li><strong>*Requires Park Tool BB tool #BBT-8 (See other ads) Not Included.</strong></li></ul>