Review on Steel Chain 8210 110 Centimeter by Robert Farrar

This is a heavy duty chain lock. It weighs about 5 pounds and is long enough to attach two mountain bikes to a small tree or pole. My son can throw it over his shoulder and ride a bike with him, but you wouldn't want to take him on long rides unless you're looking for a workout because of the weight! It would take some massive bolt cutters or a couple of power tools to snap the chain, so we think it offers enough security to stall bikes in high-visibility areas.