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Kryptonite

Kryptonite Keeper Folding Bike Lock, 2.75FT/3.25 FT Long Compact Lightweight High Security Anti-Theft Foldable Bicycle Lock with 2 Keys and Mount for E-Bikes Scooter Road Mountain Bike

  • Based on 591 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Jan 7
Order within 23 hours and 12 minutes
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Style: 39 Inches


Features

  • HIGH-SECURITY DESIGN: This Anti-Theft folding bike lock is made from 3mm hardened steel bars for greater cut resistance. Durable rubber coating helps prevent scratching and wear and tear on your bike
  • 100CM USABLE LOCKING LENGTH: Provides extended length for securing bikes, scooters, or accessories to a wide range of fixed objects
  • LIGHTWEIGHT & PORTABLE: Weighing just 1.90 lbs, this folding lock is compact enough to fit in a backpack or mount on your bike frame, making it easy for riders on thr go
  • CONVENIENT TRANSPORT BRACKET: Includes easy-to-install bracket, allowing for simple attachment to your bike for hassle free transportation
  • DURABLE & COMPACT SECURITY: Ideal for short-term stops or securing your bike in low to medium risk theft areas. This security lock comes with two keys and mounting bracket for transport
  • ATPO & KEY SAFE PROGRAM ELIGIBLE: Register to qualify for Kryptonite's Anti-Theft Protection Offer and Key Safe key replacement service

Brand: Kryptonite


Special Feature: Compact


Lock Type: Key Lock


Item dimensions L x W x H: 25 x 5 x 5 inches


Material: Alloy Steel


Brand: ‎Kryptonite


Special Feature: ‎Compact


Lock Type: ‎Key Lock


Item dimensions L x W x H: ‎25 x 5 x 5 inches


Material: ‎Alloy Steel


Recommended Uses For Product: ‎Securing bicycles in urban, suburban, and rural areas


Style: ‎39 Inches


Color: ‎Black


Number of Pieces: ‎1


Finish Type: ‎Painted


Included Components: ‎Lock^Bracket^Strap^Key(2)


Controller Type: ‎Hand Control


Shape: ‎U Shape


Item Weight: ‎1.9 Pounds


Control Method: ‎Touch


UPC: ‎720018004127


Model Name: ‎LK4530


Global Trade Identification Number: ‎27


Manufacturer: ‎Kryptonite


Item Package Dimensions L x W x H: ‎11.38 x 4.88 x 2.24 inches


Package Weight: ‎1.1 Kilograms


Item Dimensions LxWxH: ‎25 x 5 x 5 inches


Brand Name: ‎Kryptonite


Warranty Description: ‎Replace if was broken from factory


Suggested Users: ‎Unisex


Number of Items: ‎5


Part Number: ‎4127


Model Year: ‎2018


Size: ‎Generic


Date First Available: December 18, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jan 7

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Sturdy and easy to carry and use.
Style: 39 Inches
I am rating the lock not Amazon's delivery, so I'll give it 5 stars. The lock is sturdy and easy to mount and use. No, it wouldn't stand up to a grinder, but I never leave the bike out of public sight or for very long. It's not too heavy and fits my folder perfectly. Next day delivery took over a week and a customer service call but other than that it was great. ... show more
Reviewed in the United States on July 2, 2025 by Michael Lueck
    • Protect your bike
Style: 39 Inches
Strong Lock quality: Ok
Reviewed in the United States on July 4, 2025 by Rick
    • Works really great
Style: 39 Inches
Best lock I have ever used, e-bike 2 locks works great
Reviewed in the United States on June 19, 2025 by Ruby Lutz
    • Very Compact, Easy To Use, Fiddly Key
Style: 33 Inches
This is a good medium-Security bike lock, very compact, packs easily and securely into the provided carrier. The carrier mounts to standard bottle bosses, an ideal storage solution. I bought the smaller size, which is large enough to secure the frame and rear wheel. I wouldn’t trust this lock for overnight storage in an exposed area, but for use during the day while dining or shopping it should be adequate. The keys are a bit fiddly, the lock mechanism doesn’t feel that solid, but that’s probably one of the trade-offs when using a lightweight lock, and this lock only weighs about a pound and a half, the same as a 24 ounce water bottle. I’m sure any determined bike thief can defeat this lock, but it’s more secure than a steel cable, and a lot easier to use than a U-lock, and easier to store on a bike than any other design. ... show more
Reviewed in the United States on June 17, 2020 by Timazon
    • Compact and simple to use
Style: 39 Inches
I had to graduate from a simple cable lock for my beat-up hybrid bikes to something a little more secure for a modern Class 3 E-bike. This folding lock is moderately secure, enough for shorts stops and more where I ride. The length is sufficient to lock a bike frame around a good size post or other sturdy object, and simple to operate. While it's not light, it's not ridiculously heavy. Most importantly, it easily fits into the side pocket of a small rear rack bag. The lock itself is coated with a soft material so it won't scar your bike during use. Not as secure as a U-lock, but more versatile. And not as heavy or as bulky as a similar size chain lock. Seem like a good compromise between security and weight for those riding in a rural or suburban environment or for short stops for lunch or shopping. ... show more
Reviewed in the United States on July 10, 2024 by Roger Rowlett
    • Locks great
Style: 39 Inches
The lock is great but won’t stay mounted it is always falling or sliding around probably going to be home when I need it
Reviewed in the United States on September 6, 2024 by Jeff Mcanelly
    • Great usability
Style: 39 Inches
The flexible hinges allow you to wrap this around, oddly shaped objects. It folds up nicely and stows on the bike easily. I lock and unlock my bike multiple times per day and this particular bike makes that task much simpler and quicker.
Reviewed in the United States on September 11, 2024 by Amazon Customer
    • Excellent
Style: 39 Inches
Great lock for the price. It isn't maximum security but in my relatively low crime are it does the job. Attaches right to the frame and works great
Reviewed in the United States on November 16, 2024 by Michael DeMaio

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