Introducing the Squire Stronghold High Security Padlock with 14.5mm x 1200mm High Security Chain. This is one tough couple! This extremely high security lock & chain are designed for securing motor cycles originally, however if you can lock a motor bike with a lock & chain why can't you use the same lock & chain on a bike? The Burly 14mm diameter hardened Boron Alloy Steel chain is half the reason why this chain & lock is Gold Sold Secure rated. The padlock supplied is a 65mm solid hardened Steel with a 6 pin tumbler anti-pick lock mechanism which allows for 250, 000 different combinations. The 1200mm chain is long enough so that you can weave the chain in & out of your wheel & through your frame, keeping the main & vital parts of your bike together. The chain is covered in a hard wearing Nylon which will leave your frame scratch free. Overall this is a solid lock & chain set & it will protect your bike against any bike thief. Along with any Squire Lock comes 10 years guarantee.