Oxford gp chain lockoxfords gp chain lock is a multi purpose chain lock with 8mm square link chain and integrated lock head the locks flexible cloth sleeve protects your bikes paintwork from damage this lock is designed to offer a good level of security at an affordable price the generous 15m length makes this a very versatile lock which can be used for securing a bicycle or high value accessories the gp chain lock is supplied with 4 keys features 8mm square link multi purpose chain l