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SKU: CNLK0205

Squire Strongloop J4 Security Chain - 8mm Hardened Steel Bicycle Lock with 1200mm Length, Sold Secure Bicycle Silver Approved, D-Lock Compatibility, Heavy-Duty, Security & Theft Protection for Commuters and Cyclists

Regular price $76.77
$64.99 Sale price $76.77 Regular price
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$10 Gift Card

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$25 Gift Card

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$75 Gift Card

at 1,000 points

Description
Specifications

Secure Your Bicycle with the Squire Strongloop J4 Security Chain - 8x1200mm

Enhance your bike's security with the Squire Strongloop J4 Security Chain, an industry-leading locking solution designed for reliable protection against theft. Crafted with premium materials and cutting-edge engineering, this bicycle security chain combines durability, flexibility, and ease of use to safeguard your valuable cycling assets.

High-Strength Materials & Construction

Made from 8mm diameter hardened steel, the Strongloop J4 offers superior resistance to cutting and brute-force attacks. The robust chain features a 15mm diameter loop-end, allowing full utilization of the chain length for versatile locking options. The high-quality steel construction ensures long-lasting durability even in harsh environmental conditions, making it an excellent choice for urban, commuter, or mountain biking applications.

Optimized Performance & Security Technology

This security chain is designed with a focus on strength and reliability. The hardened steel links provide exceptional resistance against cutting tools, while the flexible length of 1200mm offers ample reach to lock your bike to various fixtures. The chain is compatible with D-Locks up to 14mm shackle diameter, providing maximum compatibility with popular lock brands and models. Sold Secure Bicycle Silver Approved, the Squire Strongloop J4 meets rigorous security standards, giving you peace of mind wherever you ride.

Innovative Features & Style

With a sleek and professional appearance, the Squire Strongloop J4 complements both modern and classic bike styles. Its lightweight design (weighing approximately 5.3 lbs) ensures portability without sacrificing security strength. Whether securing your bike in busy city centers, bike racks, or remote areas, this chain provides an optimal balance of style, utility, and high-performance security.

Perfect Use Cases

Ideal for daily commuters, recreational riders, and bike shop owners, the Squire Strongloop J4 is perfect for locking bikes to immovable objects, securing multiple bikes, or protecting high-value cycling gear. Its versatile length and robust construction make it suitable for urban environments, bike parks, and touring adventures.

Protect Your Ride Today

Invest in the trusted security of the Squire Strongloop J4 Security Chain-engineered for durability, optimized for security, and designed for cyclists who demand the best in bike protection. Secure your bike confidently with a chain backed by proven technology and industry standards.

Order now to experience the ultimate in bicycle security and peace of mind!

  • High-strength 15mm hardened steel chain links provide maximum security and durability, resisting cutting and sawing attempts for peace of mind.
  • Engineered with a robust 8mm chain diameter and full-length 1200mm design, offering flexible locking options for versatile bike security.
  • Compatible with D-Locks up to 14mm shackle diameter, ensuring a secure fit with a wide range of locking accessories and enhancing overall theft protection.
  • Sold Secure Bicycle Silver Certified, meeting rigorous industry standards for theft resistance and quality assurance, making it a trusted choice for serious cyclists.
  • Featuring innovative loop-end design that utilizes the full chain length for secure anchoring, combined with a lightweight design at approximately 5.3 pounds for manageable portability.
Chain8mm
Length1200mm
Model NameStrongloop J4
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We pride ourselves on our ability to ship and deliver your gear with excessive speed! We ship from 22 locations throughout the United States and most orders will arrive in 3 days or less with Free Shipping on orders over $75!

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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

We provide the you the ability to utilize multiple shipping & billing addresses, based upon what fits your current needs. However you are responsible to maintain and update any new address changes, as 365 Cycles will not be held liable for orders being shipped to an incorrect address.

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If you need to return your order please email us at info@365cycles.com, call us at 603-968-5797, or use the live chat on our site.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

Living an active lifestyle is just that, a lifestyle that never goes away and our goal is to always exceed your expectations so we can take this lifelong journey together. We strive to have the parts you need, at competitive prices with unmatched shipping speeds!

If there is ever an issue with an order we will work at warp speed to fix our mistake and make sure you never go a day without a bicycle! If you are not receiving the quality of service you need from one of our exceptionally qualified bicycle experts, tell them Ben Berman told you to tell them "Customer Loyalty" and then name your terms.

Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


Company Core Values: 

These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

Customer Loyalty

Put yourself in their shoes and support those who support us.

You Control the Outcome

If it is to be, it’s up to me" You are personally responsible for controlling the outcome.

Seek Understanding

Understanding the answer is more important than the answer.

Progress Not Perfection

Pick a direction, analyze the results, and be willing to change course.

Will to Win

Customers, 365 Team, Partners, all need the will to win. Bring the Will to Win to every conversion.

Keep Moving

Move the body, move the mind, and remove any hurdles to achieving an active lifestyle.

Do the Right Thing:

Doing the right thing is more important than doing the thing right.

Stronger together:

If you want to go fast, go alone, if you want to go far, go together. Get your team involved and become stronger together.

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