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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

  • Based on 602 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, May 12
Order within 22 hours and 5 minutes
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Style: Bike U-Lock


Features

  • 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
  • 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
  • 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
  • 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
  • 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.

Description

The 12mm hardened steel, standard size Combination U-lock 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! This is a standard size u-lock at 4" x 8" which is great for many lock-up scenarios. The Combination U-lock has optional $500 Anti-Theft Protection Offer (registration required) and includes the Kryptonite Combo Safe Program. Register your combination with us at and we'll be able to help should you forget your combination.

Brand: Kryptonite


Special Feature: Heavy Duty,Portable,Lightweight,Compact,Anti-Theft,Resettable


Lock Type: Combination Lock


Item dimensions L x W x H: 1.75 x 6.5 x 10 inches


Material: Alloy Steel


Brand Name: Kryptonite


Recommended Uses For Product: Security, Sports & Outdoor


Number of Pieces: 1


Included Components: Lock


Model Number: 005292


UPC: 720018005292


Model Name: Kryptonite Combo U-Lock Bicycle Lock


Manufacturer Warranty Description: Lifetime


Manufacturer: Kryptonite


Unit Count: 1.0 Count


Manufacturer Part Number: 005292


Item Type Name: Bicycle Lock


Additional Features: Heavy Duty,Portable,Lightweight,Compact,Anti-Theft,Resettable


Lock Type: Combination Lock


Controller Type: Ring


Control Method: Touch


Style Name: Bike U-Lock


Color: Black


Shape: U Shape


Material Type: Alloy Steel


Finish Types: Painted


Item Dimensions: 1.75 x 6.5 x 10 inches


Item Weight: 16 ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 12

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.

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  • 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

    • Robust! Easy to program your own 4 digit combo comes with good cable!
Size: 4" x 8" Style: Bike U-Lock
This is a very sturdy and imposing lock. I found the combo very easy to change from the factory setting and can easily change it again if I like. This is a good size to use in combo with a cable to keep the wheels of the bike secured along with the frame. This is very heavy, but I think it will be a respectable deterrent to casual opportunists. It had better work, it cost more thank my bike! The cable comes with it and is sturdy and of a perfect length ~ don't be worried, the lock will arrive one day and a few days later the cable shows up! ... show more
Reviewed in the United States on August 19, 2025 by Anonymous
    • Five-Star Security, Zero-Star Bike Thieves! ⭐⭐⭐⭐⭐
Size: 4" x 8" Style: Bike U-Lock
Oh, boy, let me tell you about my newfound love affair with the Kryptonite Combo Bike U-Lock Standard! 🥰🔒💕 You see, I live in a neighborhood where bike thieves are as common as pigeons in the park 🦆, so I needed a lock that could keep my precious two-wheeled buddy safe and sound. And let me tell you, this lock is a legend! 👌💪 First things first, let's talk about the build quality. This lock is so sturdy, it could probably withstand a hurricane! 🌪️🔒💪 The 12mm steel shackle is thicker than my neighbor's walls, and the solid construction gives me the confidence of a superhero protecting their secret identity! 🦸♂️🔒✨ Now, let's get to the best part: the combination feature! 🤫🔢🎉 It's like having a secret handshake with my bike every time I lock it up. The combination mechanism is smooth as silk, and I can even set my favorite numbers. It's like creating a secret code for my bicycle buddy! 🤐🔑💙 But the real reason I'm writing this review is because, drumroll, please... my bike hasn't been stolen yet! 🥁🚫🚲 Can you believe it? It's been weeks since I got this lock, and my two-wheeled companion is still right where I left it. Every morning, I peek out the window, and there it is, shining under the morning sun, just waiting for our next adventure! 🌞🚴♀️🌈 Now, don't get me wrong, this lock isn't magic ✨🎩🔒 (though it sometimes feels like it). It's just a fantastic deterrent for those pesky bike thieves. I can't help but imagine them trying to break into my lock, only to realize they're up against a fortress they can't conquer. 😂🚫🔒 So, if you're looking for a bike lock that'll make bike thieves scratch their heads in disbelief, look no further than the Kryptonite Combo Bike U-Lock Standard! Trust me, your bike will thank you, and you'll have the peace of mind to enjoy your rides without constantly looking over your shoulder. 🙌🚲😇 Lock it up, folks! 🔒🚲🔒 ... show more
Reviewed in the United States on June 17, 2023 by nobody
    • Worth Every Penny! Highly Recommend
Size: 4" x 8" Style: Bike U-Lock
Review Image by Changyu
Review Image by Changyu
Received the item and I'm extremely satisfied! This combination lock feels heavy and substantial in hand. You can tell right away that the material is incredibly sturdy and durable, which gives me a great sense of security. What surprised me the most is the password-hiding design; the anti-peep effect is excellent. I no longer have to worry about people sneaking a peek when I enter the code. 10/10 for the design details! Solid build, highly recommended! ... show more
Reviewed in the United States on April 25, 2026 by Changyu
    • Works
Size: 4" x 8" Style: Bike U-Lock
I bought this about 4 months ago and so far it is pretty good. I lock my ebike onto the bike rack and it makes me feel a little better about it not being stolen. The one negative is the plastic slide that covers the codes does come off and that kind of sucks.
Reviewed in the United States on October 25, 2025 by Matthew J Adams
    • Perfect
Size: 4" x 8" Style: Bike U-Lock
Simple and strong
Reviewed in the United States on April 28, 2026 by Marcmoddes
    • Do not buy used
Size: 4" x 8" Style: Bike U-Lock
Bought it used like-new but it did not come with the reset key, & the factory codes 0000 or 0005 could not open it. Waste of my time and money trying to deal with this. Shame on this brand.
Reviewed in the United States on March 9, 2026 by Anuhya Banerjee
    • Good value lock to keep people honest, provides light security
Size: 4" x 8" Style: Bike U-Lock
This has a security level of 4, meaning it's one of the lowest rated that Kryptonite sells, and it's priced that way too. It has about the same security as a general padlock and most padlocks can be cut in seconds. Operation is smooth so far and works great for the purpose. I use this one for the bike rack in my work - which is inside a keycard access bike room and a locked parking garage. Basically, there are two badged doors before you can even get to the bike area. I wanted something I could leave at work for quick trips back and forth. This lock can be easily defeated by 'professional' bike thieves in less than 30-seconds. Kryptonite recommends this only for rural areas and quick stops in non-urban areas, which is accurate. For locking on a street in anywhere with a decent population, look for level 8 or higher. I use the Kryptonite Evolution chain for locking on a road during the day. Yes, the heavy weight (and cost) of higher security locks is not fun but it's better than coming back to a missing bike. Check out the 1-star reviews. ... show more
Reviewed in the United States on October 23, 2023 by Kel
    • Perfect for someone who always loses their keys (like me)
Size: 4" x 8" Style: Bike U-Lock
I use this for my scooter. It’s very sturdy. I like the code since I always lose my keys
Reviewed in the United States on April 11, 2026 by Ade S.

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