We compared Litelok with 106 other Sold Secure Gold bike locks. As most locks have different lengths, we have created a new metric called the Lock Mass Index (LMI), which takes into account both the weight and length of a lock, giving you a better figure when comparing bike locks. The LMI is simply the weight of the lock in kilograms divided by the length (or circumference) in metres. The lower the LMI number the better, for a given security rating such as Sold Secure Gold.
Here are the LMI numbers for a selection of best-selling Sold Secure Gold bike locks, demonstrating which is the best bike lock in terms of LMI (hint: it's Litelok).
Sold Secure is the premier independent testing and certification house for security products in the UK. Established in 1992 by the Northumbria and Essex Police with the help and backing of the Home Office. Sold Secure is now owned and administered by the Master Locksmiths Association (a not for profit trade association). They have close ties with many police forces and insurers in the UK, who provide Sold Secure with regular information on modern theft methods and the tools used by criminals.
Sold Secure have a three tier security grading system, of which Sold Secure Gold is the best, followed by Sold Secure Silver and then Sold Secure Bronze. Gold rated locks offer the highest level of security. Silver rated locks offer a compromise between cost and security. Bronze rated locks typically offers defence against the opportunistic thief.
You can see Litelok listed as Gold rated on the Sold Secure website here.