The Sochi Olympics are churning out dramatic victories – but athletes aren’t the only ones who fine-tuned their craft to get here. As U.S. bobsledders, skaters and lugers compete during these Games, they’re doing so with cutting-edge technology that’s gone through an equally exhaustive testing process. These technological upgrades, which look to bolster their respective sports with faster times and improved features, will help athletes stand their best chance yet at scoring the gold this year. Here we take a look at three notable improvements.