Protecting your ride
Have a good lock and know how to use it. Cable locks are very easily cut through in almost no time—even the thickest ones. A U-lock, chain lock
(specially made bike chain locks, not just chain and padlock from the hardware store), or folding locks are your best bets. Make sure that your lock is always passing through the frame, not just the wheel, though you should also try and lock your wheels, either by buying a large enough lock or buying a secondary cable lock to fasten your wheels to the frame so
no one can walk off with them.