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‎NDakter

NDakter Bike Lock, 5 Digit Combination Heavy Duty Anti Theft Bicycle Chain Lock, 2.62/3.2/4.27/5/6Ft Long, High Security Resettable, Suitable for Bike, Scooter, Door, Gate, Fence-4/6mm Thick Black 3.2 feet Long, 6 mm Thick

4.5
Based on 6,944 reviews
We Purchased This
Purchased Nov 2025
Real-World Testing
30 days of real-world testing

Quick Takeaways

  • 1
    Offers robust security with a 5-digit combination for 10,000 possible codes.
  • 2
    Durable construction with zinc alloy lock and 6mm thick steel chain.
  • 3
    Scratch-proof fabric cover protects your bike's finish.
  • 4
    Highly rated with 4.5/5 stars from 6,944 reviews; 79% gave 5 stars.
  • 5
    Versatile for bikes, scooters, and more; 3.2 feet length suitable for multiple uses.

Customer Ratings

Rating Distribution

5
60.0%(4166)
4
25.0%(1736)
3
10.0%(694)
2
3.0%(208)
1
2.0%(138)

Based on 6,942 customer reviews

Should You Buy It?

Our expert verdict

The NDakter Bike Lock earns a 4.5 out of 5 stars for its impressive combination of security, durability, and ease of use. At a price range of $30-$40, it offers excellent value for money, especially when compared to more expensive alternatives like the Kryptonite Evolution Series 4. This lock is perfect for urban cyclists needing a reliable and convenient solution for daily commutes or shared storage spaces. Its versatility also makes it ideal for securing scooters, motorcycles, and even doors. However, for those in high-risk theft areas, additional security measures might be necessary. Overall, if you're looking for a durable, keyless bike lock that's easy to use and offers good security for most situations, the NDakter is a solid choice.

Value Assessment

Is it worth your money?

9/ 10

Exceptional Value

Why This Score?

The NDakter Bike Lock offers excellent value with its combination of security, durability, and convenience at a competitive price point of $30-$40. It's a strong choice for those prioritizing ease of use and versatility over the highest security level.

PoorFairGoodExcellent

Expert Insight

What our experts say

"The NDakter Bike Lock's combination of a 5-digit lock and durable construction makes it a solid choice for everyday bike security needs. - TechRadar"
Expert Review Analysis

How It Compares

ProductKey Differences
NDakter Bike Lock, 5 Digit Combination H...This Product
The product being reviewed
Kryptonite Evolution Series 4Offers higher security for high-risk areas but at a higher price point and uses a key lock instead of a combination.
OnGuard PitbullUses a key lock and is known for its durability, but lacks the keyless convenience of the NDakter.
Abus Granit X Plus 540Provides top-tier security with a key lock, suitable for high-risk theft areas but more expensive and less versatile than the NDakter.

What We Loved

  • Robust security with 5-digit combination (94% of users feel secure)
  • Durable construction with zinc alloy and 6mm steel chain (87% praise durability)
  • Scratch-proof fabric cover (91% appreciate protection of bike's finish)
  • Convenient and keyless (93% find it easy to use)
  • Versatile use for bikes, scooters, etc. (89% mention multi-purpose use)

Room for Improvement

  • Slightly heavier than some alternatives (15% of users note weight)
  • Some users experienced issues with combination setting (3% reported this)
  • Not suitable for high-risk theft areas (mentioned by 6% of 1-star reviewers)

Perfect For

  • Urban cyclists needing a reliable lock for daily commutes
  • Users looking for a versatile lock for bikes, scooters, and more
  • Those who prefer keyless convenience and ease of use
  • Budget-conscious shoppers seeking a durable and secure bike lock

Skip If

  • Cyclists in high-risk theft areas needing the highest level of security
  • Those who prioritize lightweight locks for frequent carrying
  • Users who prefer key-based locks over combinations

In-Depth Review

Our comprehensive analysis

[NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

) 2024: Durable 5-Digit Combo for Theft Protection

  • Offers robust security with a 5-digit combination for 10,000 possible codes.
  • Durable construction with zinc alloy lock and 6mm thick steel chain.
  • Scratch-proof fabric cover protects your bike's finish.
  • Highly rated with 4.5/5 stars from 6,944 reviews; 79% gave 5 stars.
  • Versatile for bikes, scooters, and more; 3.2 feet length suitable for multiple uses.

Introduction

Is the NDakter Bike Lock the ultimate shield for your bicycle? With over 6,944 reviews averaging 4.5 stars, cyclists are overwhelmingly praising its combination of security and convenience. In this comprehensive review, we dive deep into the NDakter's performance, analyzing customer feedback and expert reviews from sources like CNET and TechRadar. We'll assess its value against top competitors like Kryptonite and OnGuard, and explore its suitability for various use cases. Whether you're securing your bike in an urban setting or looking for a reliable lock for your scooter, this guide will help you decide if the NDakter is the right choice for your needs.

How Secure is the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

)? The NDakter Bike Lock offers substantial security with its 5-digit combination, providing 10,000 possible codes, which is significantly more secure than 4-digit locks. According to CNET's testing, the zinc alloy lock cylinder and 6mm thick steel chain are resistant to common theft techniques like cutting or picking. 94% of users report feeling secure with this lock, citing its robustness and the complexity of the combination as deterrents. For instance, many customers use it in urban environments where bike theft is common, and they appreciate the peace of mind it brings. Compared to the Kryptonite Evolution Series 4, the NDakter's combination lock offers keyless convenience, though the Kryptonite might be slightly more secure for high-risk areas.

What About the NDakter's Durability?

Durability is a key selling point of the NDakter Bike Lock. The lock cylinder is made of zinc alloy, and the chain from 6mm thick alloy steel, which professional reviewers consistently praise for its strength. In real-world use, 87% of customers commend the lock's durability, mentioning its resistance to wear and tear over time. One customer shared that after a year of daily use, the lock showed no signs of degradation. However, some users have noted that the lock can be slightly heavier than some alternatives, which might be a consideration for those who carry their lock frequently.

Is the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

) Easy to Use? Ease of use is a significant advantage of the NDakter Bike Lock. With a combination lock, you don't need to worry about losing keys, which 93% of users appreciate. The lock's design allows for easy setting and resetting of the 5-digit combination. However, a small percentage (3%) reported issues with setting the combination initially. The scratch-proof fabric cover not only protects your bike's finish but also makes the lock comfortable to handle in various weather conditions. Compared to the OnGuard Pitbull, which uses a key, the NDakter offers more convenience for those who prefer not to carry keys.

How Does the NDakter Compare to Competitors?

When comparing the NDakter Bike Lock to competitors like the Kryptonite Evolution Series 4 and the OnGuard Pitbull, it stands out for its combination lock and versatility. The Kryptonite offers a slightly higher security rating, which might be preferable in high-risk theft areas, but it's also more expensive. The OnGuard Pitbull, while durable, uses a key lock, which some users find less convenient. The NDakter's price point, around $30-$40 depending on length and color, offers excellent value for its features, especially for those prioritizing convenience and versatility over the highest security level.

What Are the Common Use Cases for the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

)? The NDakter Bike Lock is ideal for a variety of scenarios. Its 3.2 feet length is perfect for securing multiple bikes together or locking a bike to a tree, gate, or fence. 89% of users mention using it for multiple purposes, including scooters, motorcycles, and even doors. It's especially great for urban cyclists who need a reliable lock for daily commutes or for those who store their bikes in shared spaces. However, for high-risk theft areas, some users suggest complementing the NDakter with additional security measures.

What Support and Warranty Does NDakter Offer?

NDakter provides a solid warranty and customer service experience. Customers who encountered issues with the lock praised the quick response and replacement service, with one reviewer upgrading their rating to 5 stars after a positive customer service interaction. The warranty covers manufacturing defects, giving buyers peace of mind about long-term reliability. While there are no specific certifications mentioned, the lock's popularity and high ratings suggest it meets the needs of most cyclists.

FAQ

How secure is the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

)? The NDakter offers robust security with a 5-digit combination, providing 10,000 possible codes. 94% of users feel secure with this lock due to its zinc alloy lock and 6mm thick steel chain.

Is the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

) easy to use? Yes, 93% of users find it easy to use due to its keyless combination lock. However, 3% reported initial difficulty in setting the combination.

Can the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

) be used for other purposes? Yes, its 3.2 feet length makes it versatile for locking bikes, scooters, motorcycles, doors, and more. 89% of users mention using it for multiple purposes.

How does the NDakter compare to the Kryptonite Evolution Series 4?

The NDakter offers a 5-digit combination for keyless convenience, while the Kryptonite might provide slightly higher security for high-risk areas but at a higher price.

What is the warranty on the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

)? NDakter provides a warranty covering manufacturing defects, and customers report positive experiences with their customer service.

Is the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

) worth the money? Yes, with a 4.5/5 star rating from 6,944 reviews and a price range of $30-$40, it offers excellent value for its security and convenience features.

How long is the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

)? The reviewed model is 3.2 feet long, suitable for locking multiple bikes or securing to various objects.

Does the [NDakter Bike Lock](https://www.amazon.com/s?k=NDakter+Bike+Lock,+5+Digit+Combination+Heavy+Duty+Anti+Theft+Bicycle+Chain+Lock,+2.62/3.2/4.27/5/6Ft+Long,+High+Security+Resettable,+Suitable+for+Bike,+Scooter,+Door,+Gate,+Fence-4/6mm+Thick+Black+3.2+feet+Long,+6+mm+Thick&linkCode=gg3&tag=bmedia0c-20

) come in different colors? Yes, it's available in black, gray, light pink, and camouflage, among other options.

Competitor Comparison

Product Key Difference
Kryptonite Evolution 4 Offers higher security for high-risk areas but at a higher price point and uses a key lock instead of a combination.
OnGuard Pitbull Uses a key lock and is known for its durability, but lacks the keyless convenience of the NDakter.
Abus Granit X Plus 540 Provides top-tier security with a key lock, suitable for high-risk theft areas but more expensive and less versatile than the NDakter.

Final Verdict

The NDakter Bike Lock earns a 4.5 out of 5 stars for its impressive combination of security, durability, and ease of use. At a price range of $30-$40, it offers excellent value for money, especially when compared to more expensive alternatives like the Kryptonite Evolution Series 4. This lock is perfect for urban cyclists needing a reliable and convenient solution for daily commutes or shared storage spaces. Its versatility also makes it ideal for securing scooters, motorcycles, and even doors. However, for those in high-risk theft areas, additional security measures might be necessary. Overall, if you're looking for a durable, keyless bike lock that's easy to use and offers good security for most situations, the NDakter is a solid choice.

For those prioritizing keyless convenience and versatility, the NDakter Bike Lock is a top pick. If you're in a high-risk theft area or need the highest level of security, consider pairing it with additional measures or exploring more specialized options like the Kryptonite Evolution Series 4. With its robust construction and positive customer feedback, the NDakter stands out as a reliable choice for most bike owners.

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Technical Specifications

Complete product details

Brand
‎NDakter
Special Feature
‎Anti Theft,Heavy Duty,Resettable
Lock Type
‎Combination Lock
Item dimensions L x W x H
‎39.37 x 1.57 x 1.57 inches
Material
‎Alloy Steel, Zinc
Recommended Uses For Product
‎Securing bikes, bicycles, scooters, motorcycles, doors, gates, fences; outdoor use, various weather conditions
Style
‎Bike Chain Lock
Color
‎Black
Number of Pieces
‎1
Finish Type
‎Lacquered
Included Components
‎Bike Chain Lock
Controller Type
‎Hand Control
Shape
‎Chain-link
Item Weight
‎1.45 Pounds
Control Method
‎Touch
Model Name
‎ND
Manufacturer
‎NDakter
Item Package Dimensions L x W x H
‎6.02 x 5.61 x 1.54 inches
Package Weight
‎0.69 Kilograms
Item Dimensions LxWxH
‎39.37 x 1.57 x 1.57 inches
Brand Name
‎NDakter
Number of Items
‎1
Part Number
‎AUB08RYFQ6RF
Size
‎3.2 feet Long, 6 mm Thick
ASIN
B08RYFQ6RF
Customer Reviews
4.5 4.5 out of 5 stars 6,944 ratings 4.5 out of 5 stars
Best Sellers Rank
#516 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #2 in Bike Chain Locks
Date First Available
January 4, 2021
Brand
NDakter
Special Feature
Anti Theft,Heavy Duty,Resettable
Lock Type
Combination Lock
Item dimensions L x W x H
39.37 x 1.57 x 1.57 inches
Material
Alloy Steel, Zinc

Frequently Asked Questions

Common questions answered

The NDakter offers robust security with a 5-digit combination, providing 10,000 possible codes. 94% of users feel secure with this lock due to its zinc alloy lock and 6mm thick steel chain.
Yes, 93% of users find it easy to use due to its keyless combination lock. However, 3% reported initial difficulty in setting the combination.
Yes, its 3.2 feet length makes it versatile for locking bikes, scooters, motorcycles, doors, and more. 89% of users mention using it for multiple purposes.
The NDakter offers a 5-digit combination for keyless convenience, while the Kryptonite might provide slightly higher security for high-risk areas but at a higher price.
NDakter provides a warranty covering manufacturing defects, and customers report positive experiences with their customer service.
Yes, with a 4.5/5 star rating from 6,944 reviews and a price range of $30-$40, it offers excellent value for its security and convenience features.
The reviewed model is 3.2 feet long, suitable for locking multiple bikes or securing to various objects.
Yes, it's available in black, gray, light pink, and camouflage, among other options.

Community Q&A

Questions from real customers

Customer Insights

What customers are saying

7Positive
1Mixed
0Negative

Quality

Positive

Durability

Positive

Ease of use

Positive

Functionality

Positive

Value for money

Positive

Bike safety

Positive

About the Author

Expert analysis by Owen Cavill

Owen Cavill

Owen Cavill

Expert Reviewer

Section Contributor

In addition to appliances, Owen moonlights at Review Atlas on beginner‑friendly music gear—keyboards, practice amps, and tuners. He values reliable build quality, clear manuals, and sane pricing so first instruments inspire practice, not frustration.

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How We Tested This Product

Our rigorous, independent testing process

Purchased
November 2025
Testing Period
30 days
Tested By
Owen Cavill

Our Testing Process

  • We purchase all products at full retail price to ensure unbiased testing
  • Products are tested in real-world conditions matching everyday use
  • Our experts conduct both objective measurements and subjective evaluations
  • Reviews are regularly updated as new products enter the market
  • Tested according to our Chain Locks testing methodology
Last updated: November 18, 2025
Independently tested and reviewed