Keep your bike safe with the Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock. This is one of the most durable bike locks available. For the ultimate protection, in this package you get both a KryptoFlex Looped cable and a Kyrptonite U-Lock. The cable is 4 feet long and just the right length – not too long and not too short. Get this for yourself or as gift for those love to cycle. Quite possibly the best bike lock for the price. Still not convinced? Check out the great reviews that this lock has received on Amazon.