In my experience a D lock is the most secure.Cable Locks And chains can easily be broken with Bolt Cropers with in seconds . (I know I!ve had a bike stolen) Buy The longest D lock you can afford. OK they are expensive but you can transfer it to your next bike and some manufcators will even provide you with insurence if your bike is stolen using one of threre products.I would recomend Squire Locks. I have owned a squire lock for 15 years and never had a bike stolen.I think these are still available. But Don!t buy Cheap Copies.
Good Dave
December 2007
a gun ! lol !
plz help with my question !?
aaron
September 2007
I'd use a D Lock, or solid U Lock, I have a £3000 Specailized which I feel safe leaving anywhere with that lock.