Bicycle detail

Locked my bike to bike rack on east side of Weld Hall between Weld and Widener Library. Thread the cable through the back wheel, through the middle hole of the frame, through the front tire, then put the cable loops within one spoke of the U-lock and connected U-lock to bike rack and through frame and front wheel of the bike. Someone either broke through lock or somehow for first time in my life locked my bike only to itself, so someone walked off with a locked up bike on their shoulder because it was not rideable.