The Onguard folding lock K9 is a great lock to protect your bike from thieves. The manufacturer offers a security level of 78 over 100, making it suitable for use in areas of medium and high theft. This anti-theft bicycle lock is articulated, allowing it to be folded and stored in its case to take up little space.The lock arms are made of hardened steel and are connected with a high security riveting system. The thickness of this Onguard K9 lock offers a very high level of security. It weighs one kilo, measures 112.5cm in length and comes with 5 keys.MORE INFORMATION: How to choose the best lock to protect your bike?