Given on of the highest ratings of any chain lock. Squire have been making padlocks since 1780 and the stronghold has been a flagship in the bicycle locking department. A high performance Sold Secure Gold rating means this lock will give you the peace of mind when locking up. A 65mm hardened solid steel closed shackle lock body means that this is an incredibly strong option for bicycle security, it also features Anti-drill protection. Electrophoretic Anti-corrosion finish means this wont be effect by the elements. A 14mm link diameter hardened alloy chain that is coated with a black sleeve gives you a lock distance of 915mm (which is the complete length of the chain) perfect for town use or partnered with a Squire ground shackle.Sold Secure Motorcycle Gold Lock & Chain Set- A high performance, high security lock and chain set.- Stronghold 65mm Hardened Solid Steel Closed Shackle Lock Body.- 12.7mm Hardened Boron Alloy Steel Shackle.- Electrophoretic Anti-corrosion finish.- 6 Pin Cylinder offering over 250,000 possible key differs.- Anti-drill protection.- Cen Grade 6 Padlock.- Comes complete with 14mm Link Diameter Hardened Alloy Steel Chain with Black Sleeve.- 915mm Length