Abus Granit Extreme Chain 37-1.1m-12mm, £199
Time used: Five years
What's good? Words can't describe the lack of care I have lavished on this faithful friend.
But it's a vicious circle – I neglect it (several winter's exposure to the elements, never a drop of oil) it doesn't show any signs of suffering from it (padlock still supple and effortless to use), I neglect it some more.
If I were a thief my intent would wither at the prospect of looking for somewhere to apply my boltcroppers.
The specially-hardened 12mm hexagonal-section chain? The solid lock body and submerged shackle?
What's not? At nearly 5kg it's like carrying a child on your back so demands a tankbag, tailpack or capacious underseat storage unless it's to be a stay-at-home device.