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


List Price: $47.99
Price: $42.95 & FREE Shipping. Details
You Save: $5.04 (11%)
In Stock.
Sold by Bell's Bike Shop and Fulfilled by Amazon. Gift-wrap available.
  • 4-Inch x 9-Inch
15 new from $36.65

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$42.95 & FREE Shipping. Details In Stock. Sold by Bell's Bike Shop and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock (4-inch x 9-inch) with 4-Foot Flex Cable + BV Bicycle Light Set Super Bright 5 LED Headlight, 3 LED Taillight, Quick-Release + Schwinn Thrasher Adult Micro Bicycle black/grey Helmet (Adult)
Price for all three: $71.63

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This item: Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock (4-inch x 9-inch) with 4-Foot Flex Cable
Customer Rating (200) (137) (51) (91)
Price $ 42.95 $ 41.23 $ 36.95 $ 79.99
Shipping FREE Shipping FREE Shipping $ 9.99 FREE Shipping
Sold By Bell's Bike Shop Amazon.com Bicyclebuys Amazon.com
Sport Cycling Cycling Cycling Cycling
Dimensions 9.02 inches x 1.18 inches 10 inches x 6.5 inches 9 inches x 6 inches 4 inches x 4 inches
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Product Description

Kryptonite Series 2 U-Locks offer a 13mm hardened performance steel shackle with classic bent foot design and a patented deadbolt locking mechanism.
  • High security, pick and drill resistant disc-style cylinder
  • Rotating dust cover protects and extends cylinder life
  • 2 keys - new "I" keys for easier usage
  • Includes versatile EZ Mount transportation bracket
  • $1,500 anti-theft protection
  • 13mm hardened performance steel shackle with classic bent foot design
  • Patented deadbolt locking mechanism and offset key location
  • Key Safe and Authentic registration and replacement program
Item Specifications
Lock Size4" x 9"
Bracket Incudedyes

Product Details

  • Product Dimensions: 9 x 1.2 x 4 inches ; 3.3 pounds
  • Shipping Weight: 3.6 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B0010XTIB8
  • Item model number: 720018999416
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (200 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

I am able to secure both wheels with the cable and frame to a bike rack easily.
fleisc66
Now that I have the Kryptonite U lock and cable, I feel very comfortable leaving my bike parked at a bike rack on my school's campus where bike theft is common.
Pearl F.
The bracket for storing this to the frame while riding was a tight fit on my bike but it does work.
AM

Most Helpful Customer Reviews

281 of 292 people found the following review helpful By Bartok Kinski on April 25, 2009
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.
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100 of 113 people found the following review helpful By Mark in Tempe on April 23, 2010
Verified Purchase
I like the lock. It's for a cheap ($100) bike. When I get a more expensive bike I'll buy the New York Std (yellow sleeve) lock.

I think the Kryptonite locks are a good value. But, the "protection offer" is almost insulting to my intelligence. You have to read the box carefully to realize you're only getting an *offer*, not protection. You can buy protection for 1-2 years. And, the terms of protection are so ridiculously tedious that you wonder why they even offer. The terms sound like they don't want you to use it.

Here's an example: You have to register your keys and serial number of your bike within 15 days. Why a time limit? I bought my lock before receiving my bike. Why should it matter to Kryptonite that I bought the lock 2-3 months ago?

Also, you can't transfer the lock/insurance to another bicycle. Why would Kryptonite care about that? Unless it's just a gimmick to sell more locks?

For a claim, you have to submit the broken lock. What if the thief takes the evidence with him?

I've heard that NYC messengers who ride expensive bikes buy two locks. They take one to a welder to cut/break. They register the keys (and buy protection) for that lock. They use the other other lock. If their bike is stolen, they submit the broken lock which they never used.

I can't blame them for doing that. Kryptonite sets the conditions that you almost have to do that if you want to protect a $1200 bike.

I would give the lock 5 stars. But, because of the fishy "protection offer," I only gave 4.
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18 of 20 people found the following review helpful By Pearl F. on January 9, 2010
Verified Purchase
Now that I have the Kryptonite U lock and cable, I feel very comfortable leaving my bike parked at a bike rack on my school's campus where bike theft is common. It took a little practice getting used to locking and unlocking quickly as well as figuring out the best way to carry it while riding my bike (it's a bit heavy), but I would buy this same product over and over again and recommend it to anyone who wants to keep their bike safe from theft.
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17 of 21 people found the following review helpful By Katie on September 3, 2009
This lock works well. It is a little heavy, and I could not attach it to my bike anywhere, so I carry it in my pack. The cable makes it much easier to lock my bike to various racks, and makes it so I can lock up my friends bike at the same time. I would buy this again.
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14 of 17 people found the following review helpful By NS on June 17, 2009
I live in New York and as it's well known, bikes don't stay long in the same location! I left my bike for more than 3 days locked with this lock and found it right I left it when I came back! The additional cable is good and nice for the price. Hate the so called eazy mount though...
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9 of 11 people found the following review helpful By Yams on December 28, 2011
Verified Purchase
Bought this as a first lock for my bike. For urban commuting in suburbs and low crime areas, this seems to work great. Most other bikes I see have only cable locks, with a few having U-locks. I've read too many accounts of people getting their bikes stolen to use cable locks, and being a worry-bug I don't think I would ever use the cable lock. Was also looking into purchasing the mini U-lock instead but there are a lot of bike racks in my area with large/fat bike rack diameters. No issues with it so far after 2 months opening/closing it, it is heavy on my bike but definitely worth it.

Only potential con is that the bar on the U-lock doesn't look very thick, and is pretty long, so it's pretty easy for bike thieves to gain leverage on it and cut it easily.

Kryptonite's misleading anti-theft protection (This last section applies to Kryptonite as a whole and not just to this product):
Lastly, the "protection" they offer you is worthless. If you read the fine print, they only pay the insurance deductible, NOT the price of your bike. This means that you MUST have your bike insured to even get them to pay a deductible. Another caveat is that in order for Kryptonite to pay the deductible you also need to send in the "sawed" or "broken" lock. If you can imagine, sometimes bike thieves would take the evidence with them, leaving you with nothing. I think the way they advertise this is very misleading and deserves to be mentioned/made public as much as possible to inform innocent consumers/purchasers.
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