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10 Best Kryptonite U Locks - Holiday Sale

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Last Updated - 2025/12/14

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01
Kryptonite

Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock Black/Yellow, 10

Free Shipping

9.7 Durability

8.7 Lock Feature

8.4 worth the money
Main highlights

Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
Interior Locking Dimensions; 4 inch x 8 inch
Anti-Theft Protection Offer; Up to $4,000 Reimbursement for 1 Year Included
16mm Hardended Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
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9.9

Exceptional

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02
Kryptonite

Kryptonite New-U New York Fahgettaboudit Mini Heavy Duty Bicycle U Lock Bike Lock

20% Off Free Shipping

9.9 Durability

9.7 Security

8.4 worth the money
Main highlights

Key Safe Program; Kryptonite will ship your first 2 keys for free, globally, in the event you lose them.
Interior Locking Dimensions; 3.25" x 6"
Anti-Theft Protection Offer; Up to $5, 000 Reimbursement for 1 Year Included
3 STAINLESS STEEL KEYS - including new design and one LED REPLACEABLE KEY FOB
18mm Hardended Max Performance Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks
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9.8

Exceptional

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Value for Money

03
Kryptonite

Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket & KryptoFlex 410 10mm Looped Bike Security Cable

28% Off Free Shipping

8.9 Durability

8.0 worth the money

8.0 Simple to use
Main highlights

Reinforced Hardened cross bar design provides increased protection
Includes 4’ KRYPTOFLEX DOUBLE loop cable for securing front wheel or accessories
High security disc-style cylinder
Center keyway defends against leverage attacks
13mm hardened max-performance steel shackle resists cutting and leverage attacks
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9.7

Exceptional

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04
Kryptonite

Kryptonite New-U Evolution Mini-7 Heavy Duty Bicycle U Lock with 4’ KryptoFlex Double Loop Bike Cable

Free Shipping

9.3 Durability

9.1 Simple to use

8.9 Lock Feature
Main highlights

Patent-Pending Hardened double deadbolt design gives additional protection against twist attacks
New sliding dustcover
New double deadbolt design
Higher security disc-style cylinder is pick and drill resistant
13mm hardened max-performance steel shackle resists bolt cutters and leverage attacks
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9.5

Excellent

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05
Kryptonite

Kryptonite New-U Evolution Mini-5 Heavy Duty Bicycle U Lock Bike Lock

17% Off Free Shipping
Main highlights

Patent-Pending Hardened double deadbolt design gives additional protection against twist attacks
New sliding dustcover
New double deadbolt design
Higher security disc-style cylinder is pick and drill resistant
13mm hardened max-performance steel shackle resists bolt cutters and leverage attacks
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9.4

Excellent

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06
Kryptonite

Kryptonite New-U New York LS Heavy Duty Bicycle U Lock Bike Lock

18% Off Free Shipping
Main highlights

Sliding dustcover to protect from dirt and debris
Patent-Pending Hardened double deadbolt design gives additional protection against twist and cut attacks
Highest security disc-style cylinder is pick and drill resistant
3 stainless steel keys -including new design and one led replaceable key fob
16mm hardened max-performance steel shackle
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9.3

Excellent

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07
Kryptonite

Kryptonite New-U Evolution Series 4 Standard Heavy Duty Bicycle U Lock Bike Lock (4-Inch X 9-Inch), Black

16% Off Free Shipping

9.1 Lock Feature

9.1 Durability

8.2 worth the money
Main highlights

Patent-Pending Hardened double deadbolt design gives additional protection against twist attacks
New smaller crossbar design
Higher security disc-style cylinder is pick and drill resistant
3 stainless steel keys — including new key design and one led replaceable key fob
14mm hardened max-performance steel shackle
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9.2

Excellent

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08
Kryptonite

Kryptonite Combo Bike U-Lock Standard, Anti-Theft Security Bicycle Lock, 12mm Steel Shackle, 4-Digit Resettable Combination U Lock for Scooter Road Mountain Bikes

Free Shipping

8.0 lock easily

8.0 Security

8.0 Mounting bracket
Main highlights

PORTABLE SIZE: This is a standard size bicycle u lock which is great for many lock-up scenarios. Size interior locking dimensions are 4" x 8" and exterior locking dimensions are 6.5” x 9.5”
MULTI-FUNCTIONAL: This Kryptonite bike lock is ideal to secure your bicycles, sports equipment, gates and fences, tool boxes & ladders, grills & lawnmowers, skateboards, truck bed and more
LIFETIME WARRANTY AND CUSTOMER SERVICE: Kryptonite is committed to providing our customers with high quality products, ensuring full satisfaction. If you are experiencing any problems with your product, please reach out to our Customer Experience team. We will work to solve your issue as quickly as possible. We provide our locks with a limited lifetime warranty so you can buy your lock with confidence.
DURABLE DESIGN: This Anti-Theft bike u lock features a 12mm hardened steel shackle that provides high security against theft. This combo u-lock includes an easy to use 4-digit resettable combination and no keys for you to lose
COMBO SAFE PROGRAM: Register your unique 4-digit combination code on our website and our customer service team will be able to help, should you forget your combination
ANTI-THEFT PROTECTION OFFER (ATPO): Up to $500 reimbursement upon registration. Kryptonite stands behind its products by providing an Anti-Theft Protection Offer on specific locks. Created by Kryptonite in 1978, the Anti-Theft Protection Offer is a program that reimburses registered customers for a specific monetary amount in the event their bicycle/motorcycle is stolen due to the opening or breaking of the lock by force
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9.0

Excellent

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09
Kryptonite

Kryptonite New-U Evolution Lite Mini-6 Heavy Duty Bicycle U Lock Bike Lock, 2.75 X 6-Inch

Free Shipping
Main highlights

Reinforced cuff over crossbar and cylinder for extra security
New Patent pending BENTFOOT double deadbolt design
Kryptonite’S lightest weight u-lock option at 730 grams 39-percent lighter than the evolution mini-5
Higher security disc-style cylinder is pick and drill resistant
11mm hardened new max-performance steel shackle material allows reduction of shackle diameter while maintaining the performance standards of the evolution mini-5, mini-7 and mini-9*
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8.9

Very Good

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10
Kryptonite

Kryptonite New-U Kryptolok Series 2 LS Heavy Duty Bicycle U Lock with Transit FlexFrame Bracket (4-Inch X 11.5-Inch)

Free Shipping
Main highlights

New patent-pending hardened double deadbolt design gives additional protection against twist attacks
New dust cover
Includes 2 stainless steel keys, with ergonomic design to reduce the amount of torque, and keep them from bending or breaking
High security disc-style cylinder is pick and drill resistant
12.7mm Hardened Performance steel shackle
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8.8

Very Good

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