Weight is a big deal when buying a bike lock because a lock is something a rider will have to carry with them, or on their bike, everywhere they go. A heavy lock can become a real pain and the added weight can even discourage the use of the bike lock. Bike rides are suppose to be convenient and enjoyable and a clunky heavy lock gets in the way of that. At Altor we are proud to make a lock that is both the fraction the weight of most locks on the market while still being secure.