Okay, you're planning to park your bicycle outside. You're going to need a lock. We're in New York City, where people carry bolt cutters in their pockets. We like the Kryptonite chain locks and U-Locks. They're the absolute best bicycle locks out there, and to dispel any rumors, no they cannot be picked with a BIC pen.
Maybe you live in the mountains in Montana and you just want to lock your bike up to the local corner store? That's where the combination cable lock comes in handy. It's lightweight, and you don't have to carry any keys. Just don't trust this cable in Times Square.
The Kryptochain (Keeper 880 chain) is the lightest Kryptonite chain lock for bicycles. Using a high quality padlock and a 2.5 foot chain ensures that your bike will be safe for extended periods of time.
The Kryptonite New York Chain Lock is the best security for urban areas. The steel links are practically impossible to break through, and the Evolution disc lock cylinder has over 1 million key combinations. Even the best lock-picker in the world can't break through this baby.
Want the ultimate bicycle lock? You won't find anything better than the Kryptonite Fahgettaboudit Chain lock. On a scale from 1 to 12, the Fahgettaboudit is ranked a 12 for Ultimate Security. Yes, Kryptonite does indeed provide insurance on your bike if you lock it with this chain. There's no better lock for New York City.
The Kryptonite NYC 3000 U-Lock is the strongest, pick-proof lock around. It even comes with insurance through the company. How's THAT for reliability? This particular lock is 4" wide and about 8" long.
The combination cable lock is an easy, lightweight solution for quick stops. Set your four-digit combination and you don't have to carry a key when you lock your bike! The combination cable lock can stretch to a length of six feet.
The Knox U-Lock is a strong, secure U-Lock for an affordable price. It comes with three keys and is big enough to fit around most bicycle frames. It's theft resistant, and weatherproof.