Bike was taken from a car roof rack; the rack has a clamping mechanism that clamped the downtube to the rack itself. The thieves just loosened the 2 straps that held the wheels to the rack and yanked the bike off the roof rack
Protect your bike – get a security protection label!
Apply the protection label to your bicycle and instantly reduce the risk of theft by up to 50%! Moreover, if the bike is stolen, you increase the chance of its safe recovery by up to 70%.