Built for abuse, the Battle Cranks may look straightforward but have been refined and optimized for brutal strength. 3-piece cranks made with heat-treated 4130, a 22mm spindle and backed with a lifetime warranty. They also have angled spindle bosses and rubber caps for the spindle bolts to help keep ankles bruise free. Available in 165mm, 170mm and 175mm lengths and are compatible with right and left side drive.