Kryptonite Kryptolok Standard U-Lock with 4 Foot Kryptoflex Cable - Sold Secure Gold Black/Silver

Kryptonite Kryptolok Standard Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12.7mm Shackle and 10mm x 4ft Length Security Cable with Mounting Bracket and Keys

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Kryptonite Kryptolok Standard U-Lock with 4 Foot Kryptoflex Cable - Sold Secure Gold Black/Silver

Overall Rating: 4.6 / 5 (average from multiple review sources, as of 27 Feb 2026)
Based on a total of 96,838 customer reviews from independent review platforms.

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2 to 3 days
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£32.99
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Kryptonite Standard U Lock with 4 Foot Kryptoflex Cable

Overall Rating: 3.5 / 5 (average from multiple review sources, as of 26 Feb 2026)
Based on a total of 4,551 customer reviews from independent review platforms.

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1-3 working days
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£34.99
Delivery from £3.95

Kryptonite Kryptolok Standard Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12.7mm Shackle and 10mm x 4ft Length Security Cable with Mounting Bracket and Keys

Overall Rating: 2.4 / 5 (average from multiple review sources, as of 23 Feb 2026)
Based on a total of 46,432 customer reviews from independent review platforms.

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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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In stock. Express Delivery available with Amazon Prime.
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£37.99
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Kryptonite KryptoLok Standard U-lock 4 foot Kryptoflex cable SOLD SECURE GOLD

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 9 Mar 2026)
Based on a total of 22,600 customer reviews from independent review platforms.

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Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£37.99
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Kryptonite Kryptolok Standard Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 12.7mm Shackle and 10mm x 4ft Length Security Cable with Mounting Bracket and Keys

In stock
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£39.95
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Kryptonite Kryptolok Bike Cycle Bicycle U-Lock With 4 Foot Kryptoflex Cable

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 9 Mar 2026)
Based on a total of 22,600 customer reviews from independent review platforms.

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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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Will usually delivered within 3 - 5 working days of receiving cleared payment.
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£40.83
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Kryptonite Kryptolok Standard U-lock Black 10.2 x 22.9 cm

Overall Rating: 3.9 / 5 (average from multiple review sources, as of 23 Feb 2026)
Based on a total of 35,520 customer reviews from independent review platforms.

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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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4 working day(s)
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£40.99
Delivery from £4.99

Kryptonite Kryptolok D Lock with Kryptoflex Cable Sold Secure Gold One Size Black

Overall Rating: 3.7 / 5 (average from multiple review sources, as of 1 Mar 2026)
Based on a total of 118,287 customer reviews from independent review platforms.

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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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3-7 working days
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£42.99
Delivery from £4.99

Kryptonite Kryptolok D Lock with Kryptoflex Cable Sold Secure Gold - Black One Size

Overall Rating: 3.0 / 5 (average from multiple review sources, as of 25 Feb 2026)
Based on a total of 18,971 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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3 to 7 days
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£42.99
Delivery from £4.99
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Product information

At a glance

  • Durable steel shackle resists cutting and leverage.
  • Double deadbolt enhances security against theft.
  • Lightweight design for easy transport and storage.

Note: This text was created with the help of AI.

Lock Up Your Ride with Confidence!

The Kryptonite KryptoLok U-lock with the included KryptoFlex Loop Cable is the ideal security solution for cyclists who need reliability and strength in their bike locks. Whether you're commuting to work, enjoying a weekend ride, or running errands around town, this U-lock is designed for anyone who values their bicycle and wants peace of mind when securing it. With its robust design and versatile features, you can trust that your bike is safe against theft, making it a must-have for everyday cyclists and serious riders alike. Explore more options for your safety with our extensive collection of Bike Locks.

Unmatched Security Features

One of the standout features of the KryptoLok U-lock is its strong, hardened steel shackle that provides exceptional resistance against cutting and leverage attacks. The lock's double deadbolt locking mechanism ensures that the shackle stays securely locked in place, making it incredibly tough for thieves to compromise. What’s more, this U-lock is designed to withstand a variety of weather conditions, so you can leave your bike locked up outside without worrying about the elements damaging your lock. The included KryptoFlex Loop Cable adds another layer of security, allowing you to secure both the frame and wheels of your bike, ensuring you can ride with complete peace of mind.

Stylish and Practical Design

The Kryptonite KryptoLok U-lock not only excels in security but also boasts a sleek and modern design that fits seamlessly with any bike style. With its compact and lightweight construction, it’s easy to carry in your bag or attach to your bike frame. The bright, eye-catching color adds a touch of personality, making it not just a functional accessory, but a stylish one too. Its practical design also allows for quick and easy locking, so you can spend less time worrying about your bike and more time enjoying your ride.

Convenience and User-Friendly Features

The KryptoLok U-lock is all about convenience. It comes with a flexible mounting bracket that makes it simple to attach to your bike frame, ensuring that it’s always within reach when you need it. The lock also features a key safe program, which means if you ever lose your keys, Kryptonite can help you get a replacement without any hassle. Additionally, the inclusion of a lifetime warranty against mechanical failure reflects the manufacturer’s confidence in the product’s durability—so you can trust it to keep your bike secure for years to come. With this lock in your arsenal, you can embrace your cycling adventures with confidence and ease!

Note: This text was created with the help of AI.

Pros and cons

Pros

  • Exceptional theft resistance
  • Double deadbolt for added security
  • Weatherproof and durable design
  • Lightweight and easy to carry
  • Includes lifetime warranty

Cons

  • May not suit heavy-duty needs
  • Key replacement requires registration

Note: This text was created with the help of AI.

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Kryptonite Kryptolok Standard U-Lock with 4 Foot Kryptoflex Cable - Sold Secure Gold Black/Silver

Cheapest offer

The high-security lock is pick and drill-resistant and also comes with anti-rattle material which reduces noise. The lock also includes a specific FlexFrame mounting system which makes it easy to carry around.Key Features:13mm hardened Performance steel shackle resists cutting and leverage attacksNew patent pending hardened double deadbolt design gives additional protection against twist attacksHigh security disc-style cylinder is pick and drill resistantAnti-rattle bumpers reduce noise during transportNew dust coverIncludes Transit FlexFrame-U transportation system which allows for versatile carryingProtective vinyl coating2 stainless steel keysKey Safe ProgramRated 6/10 on Kryptonite’s security scaleOptional ATPO - £1,000Product dimensions: 4” x 9” (10.2cm x 22.9cm)Product weight: 3.65 lbs (1.66 kgs)Sold Secure Bicycle Gold certified
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