The main precaution to be taken when using twisted cable locks and chains to tie up bicycles and motorcycles is to position them so that they are kept off the ground. By doing so hinders attempts to cut with them with cutters and shears. If the cable or the chain touches the ground, it is possible to rest the head and an arm of the cutters on the ground, thereby loading the entire weight and force on the other arm of the tool. This takes advantage of the leverage effect, and imparts a much higher force than could be developed by simply squeezing together the arms of the tool with both hands. Continue reading →