Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock (4-inch x 9-inch) with 4-Foot Flex Cable Review

Average Reviews:

(More customer reviews)Kryptonite STD U Lock seems to be a very decent lock but it still can be "infiltrated" by a knowledgeable master thief/master lock picker in probably under 1 hour time. I'm not too worried since it is sizable, hefty looking and very heavy (4 lbs), so it looks bigger than what I saw on other bikes in the bike rack and my bike is only valued at $500. Plus most bike thieves are just simple crooks with a few tools (a bike crook in public with a 20 Pound Sledge Hammer, hacksaw, 42-inch bolt cutters, 12-inch screwdriver, 20-inch crowbar, and claw hammer will be very obvious and suspicious working for one hour on a lock).
Most bike thieves have limited time, looking for an "easy" and quick target. If you beef up your security with the bulky Kryptonite STD U Lock, odds are he'll go for a bike with a cheap lock (cheap chain or cable locks are a certain way to get your bike stolen in the bike rack). Many bikes are stolen because they're not even locked ("I'll just be a sec!"). Many bikes are also stolen because the locks are used incorrectly or left open/unlocked by mistake.
Kryptonite STD U Lock. The keys are very flimsy and forged with cheap metal so I won't be surprised in 12 months that they snap or are damaged. The Lock holder (cheap plastic) didn't work on my bike as the Lock is too big to fit anywhere so I just snug it into my rear rack.
Comes with a cable (be warned, it can be cut quite easily so don't use it as a "main attachment" to a pole, bike rack, etc, just use it to secure your rear or front tires with the U Lock attached to a pole, bike rack, etc, or run the cable through both the seat and the rear tire with the U Lock fastened to a solid object).
You should use a cable lock ONLY to secure your front or rear tire to the bike frame or bike rack. ALWAYS attach the U Lock to a solid, fixed object (lamppost, pole, road sign, fence, bike rack, etc). A cable lock is NOT a primary security tool to secure your bike. Never rely on a cable to anchor your whole bike, it can take someone a few seconds to cut through a cable lock. Always use a high quality U-lock or hefty chain as your MAIN locking device and cables as secondary devices.
In spite of AT LEAST 5 known attempts by petty German bike thieves to break through the Kryptonite STD U Lock, it's held up and has been an eminent tool in my bike lock collection (my secondary cable/cheap Chain locks securing my front tire have ALWAYS been cut).
In all, it's not bad for medium to low bike crime areas but don't use it ALONE for overnight, expensive bikes, big cities, dangerous zones or in dark desolate areas where a thief can use high powered tools or torches.
If you need more Security (you also will need to put up with the hassle of more Weight) go for:
Kryptonite New York Chain With EV Disc Lock Chain
OnGuard Brute STD 5001 U-lock
Kryptonite New York Fahgettaboudit U-lock
OnGuard Beast Chain

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