Never even had the opportunity to try
I received the rack and attempted to put together. I first read the directions and also watched the youtube instructional video from www.kuatracks.com. I alternated the tightening of the bolts as stated in the directions. The result a cracked rack arm. 2 stripped bolts and 1 broken bolt. I had more issues with this one rack than I ever with any Thule, Yakma, or Saris rack that I have ever owned, and to boot, my wife and I have a ride this Sunday that we cannot participate in because we do not have a rack. Our old rack is no longer useable after about 6 years of use. I am returning immediatelty and ordering what I know works. Thanks backcountry for working with me.