2-piece design. Made from 100% 41-Thermal heat-treated chromoly. 22mm hollow chromoly spindle is welded to the drive side arm for increased stiffness and strength. Includes proprietary wedge cluster, spindle bolt, and sprocket bolt.
BOTTOM BRACKET NOT INCLUDED.
ONLY COMPATIBLE WITH SPROCKETS THAT USE A 15/16" BORE (most modern sprockets).
Weight: 28.3 oz