Haro Fusion Crank Alloy 175mm BlackThe Haro Fusion Cranks are made from 7050 Aluminum with Cr-Mo threaded pedal boss and 22mm Cr-Mo Heat Treated axle. These cranks are the same shape as our original cranks back in the late 80's, but made to withstand today's intense riding. There is a 22mm chromoly spindle with a square arm interface, compatible with MID or USA BB shells with the included sealed BB set and adapter cups. Compatible on both the right or left drive side.691840966009