Kryptonite Keeper Long Shackle 12mm U-Lock Bicycle Lock with FlexFrame-U Bracket
Condition: New
Buy Now, Pay Later
As low as
$9.16
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Thursday, Oct 22
Size: 4" x 10" 12mm
Features
- 12mm Hardened Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
- Interior Locking Dimensions; 4" x 10"
- Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
- Anti-Theft Protection Offer; Up to $500 Reimbursement
- Lifetime
Description
The Kryptonite Keeper Long Shackle U-Lock features a 12 mm hardened steel shackle with a double deadbolt anti-rotation design that resists bolt cutters and twisting leverage attacks. The lock’s disc-style cylinder with center keyway is protected by a vinyl coating and is pick and drill resistant. It includes two stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking. Rated at a 5 / 10 on our security scale, the Keeper Long Shackle is good for quick stops in a metropolitan area, a couple hours in the suburbs or all day & overnight in rural areas. It also includes our patented Side Mount, Snap-In Bracket providing convenient U-Lock transport. The combination of these great features and our support programs including Key Safe, Anti-Theft Protection, and Lifetime Warranty make Kryptonite Bicycle Locks the best choice for protecting what you value.
Brand: Kryptonite
Special Feature: Portable
Lock Type: U-lock
Item dimensions L x W x H: 11.5 x 1.18 x 4.02 inches
Recommended Uses For Product: low crime areas.
Brand Name: Kryptonite
Recommended Uses For Product: low crime areas.
Number of Pieces: 1
Included Components: Locks
Model Number: 997962 Keeper LS
UPC: 720018997962
Model Name: Keeper LS
Global Trade Identification Number: 62
Manufacturer Warranty Description: Limited Lifetime Warranty
Number of Items: 1
Manufacturer: Kryptonite
Number of Packs: 1
Unit Count: 1 Count
Item Type Name: Bicycle Lock
Manufacturer Part Number: 997962
Additional Features: Portable
Lock Type: U-lock
Controller Type: Hand Control
Control Method: Touch
Style Name: U-Lock
Color: Black
Shape: U Shape
Finish Types: Painted
Item Dimensions: 11.5 x 1.18 x 4.02 inches
Item Weight: 1.2 kg
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Oct 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
$12/mo*
PlayStation DualSense Wireless Controller – Galactic Purple
$12/mo*
PlayStation DualSense Wireless Controller - Starlight Blue
Top Amazon Reviews
Size: 4x8"
If you care enough to buy a lock for your bike in the first place, then you should care enough to get a lock that works better and easier than another lock, on top of giving you great security, so you will get into a habit of employing it all the time and not be lazy because the lock takes more effort to use. Lazy? Yes, and laziness is the biggest reason to not use a lock you bought to protect your bike. Just having a strong U-lock isn't good enough. You have to use it. An unused lock is the worst security feature a lock can have. Easier, with top security features is just better. You'll use this Kryptonite lock and that will save your bike more times than you will ever know. I put it in the same realm as building a better mouse trap. Having returned an On-Guard 5510 Mini U-Lock with Additional Security Cable (4 feet) to Wal-Mart where I had bought that lock, I chose this Kryptonite lock instead because, although On-Guard claims to be "obsessed" about security they sure aren't when it comes to product design. Bottom line is if you have a lock that is not as easy for you to use, then you will of course use it less and take a bigger risk with your bike becoming a crime statistic (stolen). Amazon had Wal-Mart beat on price for this Kryptonite lock, too. Comparing Amazon's service to Wal-Mart's wouldn't really help, since Wal-Mart forgot what service is years ago, and Amazon has consistently provided me with better service in all areas for many years now. Shipping for this lock, along with Avenir Tightrope Cables (12mm / 7 feet) - to make securing my bike a more complete security system for my wheels and saddle along with making more work for a would-be thief - and a Bell Dawn Patrol LED Headlight took just 4 days using Super Saver shipping, and you can't beat that. My Planet Bike Blinky "3" 3-Led Rear Bicycle Light , that I purchased at the same time, was packaged and sent along separately, but still arrived on the same day. Look for those reviews from me, too, should you like this one. This U-lock is very tough and I don't think you could easily find something that would cut through it, at least not something you could easily carry with you and go unnoticed. Seems more like someone would have to use a diamond wheeled grinder type of cutter with a power drill, at the very least, and that sure wouldn't be discrete or fail to draw attention. So while someone would not be able to easily steal your bike with this lock - if properly secured - for errands, short trips to a store, or in a busier type of place where you could even leave your bike all day, it won't be for you if you leave your bike in high-crime areas. I wouldn't trust this lock to be the only means of securing your bike at night for a long period of time or in an area with few people around and little activity during the day, as people being around and seeing your bike is one step in your security plan to make stealing your bike a less attractive option for a thief. One thing I really like about this Kryptonite lock over the On-Guard U-lock is that while On-Guard uses a dual, straight bayonet system on both sides of the locking arm to attach to the shackle, this Kryptonite U-Lock has an easier and better system to attach the locking arm onto the shackle. It's not dual, straight bayonet on both sides. One side of the locking arm of this Kryptonite lock has a short, angled part of the locking arm that helps you to guide and fit the locking arm into the shackle for that side, then you just swing the locking arm around the frame of your bike and a stationary object and clasp the other side of the locking arm (which has a straight bayonet fitting) into the other side of the shackle, then lock it by turning the key. To me, Kryptonite's is just a better design that makes attaching the locking arm to the shackle a little easier in warm, dry conditions and especially easier in cold, wet conditions. It also makes it easier to attach the locking arm to the shackle by obtaining a little leverage, if needed, for those times when you have to use a stationary object (like a pole) that is larger in diameter than some others when you lock up your bike. The dual, straight bayonet system for the locking arm with On-Guard's lock makes you press down and use compression alone (your muscle strength) for attaching the locking arm to the shackle. Kryptonite's design, with one side of the actual locking piece of the arm at an angle, lets you lock that side in and pull as well as push down on the locking arm if you need to. As luck would have it, since I have received this lock the weather has taken a turn from nice and warm to colder than a mother-in-law's kiss, with ongoing cold rain or drizzle and I have really found out just how much better Kryptonite's design and locking system works, which means it just makes it that much easier to lock up my bike. Locking up my bike properly is a habit I don't want to break. If a lock is more of a pain in the butt for me to use, like the dual, straight bayonet system On-Guard uses in their U-lock design, then I'm less likely to use it all the time, which means a thief will be more likely to take my bike. And that would make me sad. In short, you spent your good money on your bicycle purchase. Spend a little more and get a good U-lock like this one, or a stronger one if your area is more of a high-crime/high risk area, and use it along with a good cable like the Avenir Tightrope Cables (12mm / 7 feet) . Little out-of-pocket cash, but you will have a security system that will intimidate most thieves, so the opportunists will give up without even trying and the more determined thief will move on to an easier target. For those interested in Kryptonite's Anti-Theft Protection offer, yes, you can register the lock and your bike with Kryptonite. You must verify your bike's serial number and purchase price with Kryptonite plus pay a yearly fee, along with other requirements and restrictions. It is all detailed in the enclosed package with the lock, and is available on Kryptonite's website if you want to know more.
...
show more
Reviewed in the United States 🇺🇸 on October 7, 2011 by Robby Revue
Size: 4x8"
Had a kryptonite lock from the 80's but the 1 key quit working and that worried me, so I bought this one. Not as good as the old one, has a curved side which I don't like, and I don't like way the lock works either. Doesn't snap closed you have to keep the lock open then insert the bar and then use the key to lock. The old one was one and done. I like having 2 working keys though.
...
show more
Reviewed in the United States 🇺🇸 on September 18, 2022 by T Frazer
Size: 4x8"
As a lock, this is decent. It's reliable and tough enough for areas like Ann Arbor. Any higher risk though, like New York, and you'll want to get a beefier lock and preferably with double bolting. Anyway, I've been using this lock daily for more than a year and the mechanism has held up well. It's been dropped on the road a ton of times and still works like new. Just be sure to lubricate it regularly, like monthly, or else it gets dry and difficult to get the key in all the way. One of my friends let his go dry and spent like half an hour trying to jam the key in before I got there with the WD-40. Speaking of which, the keys are nice and strong. The lock is good, but I can't give this five stars because the part of the bracket that stays on the bike cracked off after two months of use and I had always treated it with care before. Because of the failure of that part, the lock fell on the ground and the plastic slidey thing on the shackle broke off as well. Also, the covering over the shackle became badly cracked so I had to wrap it up with duct tape to avoid scratching my bike. The summer after that, I restored the bike and gave it a new paint job in the process so I devised a way to hold the lock without chipping the paint (pictures below). It now knocks on the rack and not the frame and it doesn't have to bounce out of the basket anymore.
...
show more
Reviewed in the United States 🇺🇸 on January 4, 2015 by hotdog428 hotdog428
Size: 4x8"
I've had this lock for almost a year now. First thing, all of the reviews complaining about the clamp being on the wrong side are just foolish. The clamp can easily be changed around via a simple bolt, and it can be made to fit any need. I've had the lock clamped to my bike the entire time and it works great and doesn't slide around or fall off. You'll also read a lot of reviews about this thing being broken. The thing is nowadays there are mini tools that can cut through just about anything, and quickly. I view this thing as more of a deterrent than a 100% full proof lock. Therefore I've used this lock combined with a thick chain lock to keep my bike secured in downtown Fort Lauderdale, and at the beach. It's always been kept outside. To put that in perspective, when I moved to the beach 4 out of 5 bikes were stolen from my building in less than 2 months... mine was the only one that wasn't. To be fair, I noticed most of the bikes had minimal security, such as small basic cable locks only, which were quickly cut (most of them were taken during the day!). Another thing is that where possible, you'll want to keep the keyhole pointed downward. I had his thing in the rain for so long with no issues, but one time the keyhole was pointed up and a heavy rain came through, and it was full of rust and pouring out just the same. Nevertheless, it's still held up and still does. But since the rain I've had the occasional complication with the lock mechanism. All in all, for the price, this is a great lock in my mind.
...
show more
Reviewed in the United States 🇺🇸 on July 24, 2013 by Johnny5