Soldsecure publishes the results of its bike lock tests. Their ratings are used by insurance companies in the UK to establish the cost and eligibility for theft insurance. A "gold" rated lock can stop or delay most Pro crooks for ten minutes or so. A "silver" rated lock can stop an run-of-the-mill crook. The "bronze" rated locks look like a bike lock, and might fool a dumb crook into thinking you own a lock. They often look just like a real lock. REAL bike locks sold in the USA are sold by Kryptonite and OnGuard. Pretend bike locks are sold by Master lock, and other pretend lock companies.

www.soldsecure.com/Leisure.htm