Review on Gorilla Automotive 61641 Acorn Thread by Darnell Murphy

I lived in a rough city and these locks have probably saved my bikes from theft more than once. If you also have relatively good wheels and rims, you need to protect them. It's too easy to steal someone's wheels, and I've seen the heartache with my own eyes. These gorilla locks work exactly as described. They are made of solid metal and the tooth pattern is unique. You cannot remove these locks with a regular outlet. You MUST have a wrench or some powerful power tools which not every criminal will have at their disposal. I always keep the key in the trunk of my car in case I ever need to change wheels or fit a spare. Why no method is 100% effective, these locks deter 99% of all bike thieves and are a must have for your vehicle. Sometimes a simple $20 purchase can save you hundreds of dollars and some heartache. Don't hesitate any longer!