Foldylock Classic Sold Secure Gold Certified Folding Bike Lock


Created On: Aug 31, 2026
Reviewed By: Shahaf Levavi
Last Updated: Sep 03, 2026
Security Level 16/18 Sold Secure Gold FUB Certified Ice Spray Certified Protected by Multiple Patents 3 Years Warranty
Buy on Seatylock.com

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Summary

Seatylock Foldylock Classic 100 is the lightest Sold Secure Gold certified folding bike lock in Seatylock's lineup, giving you top-tier security without the weight penalty most high-security locks carry. Its hardened steel links, anti-drilling components, and patented ultra-protected rivets deliver a 16/18 security rating addressing the most common attack point on folding locks: side cuts. At 100 cm circumference, the Foldylock fits larger bikes and gives you more locking options. The lock folds into a compact frame-mounted case, deploys in seconds, and rides quietly with a built-in rattle elimination system. Register your keys to activate a three-year manufacturer warranty.

Table of Contents

Product Specifications

Brand Seatylock
Product Name Foldylock Classic
SKU FQGD-ON
EAN 5060967810468
Security Rating 16/18
Certifications Sold Secure Gold and FUB
Material Hardened Steel with Nylon 6 and Glass Fibers Cover
Weight 1.6 kg (3.53 lbs)
Circumference 100 cm
Warranty 3 Year Product Defect Manufacturer Warranty

Key Features and Benefits

Lightest Gold Rated Lock

At just 1.6 kg, the Foldylock Classic is the lightest lock in Seatylock's Sold Secure Gold folding lock lineup. You get top-tier security without the added weight most high-security locks carry.

Anti-Tamper Rivets

Seatylock's patented ultra-protected rivets block the most common attack point on folding locks. Side-cut attempts meet a guard system built to hold.

Verified High Security

This lock combines practical weight with independently tested security. Sold Secure Gold and FUB certifications confirm it meets rigorous third-party standards, giving you proven performance, not just manufacturer claims.

100cm Reach

At 100 centimetres circumference, the Foldylock Classic 100 fits larger bikes and more locking spots. You get more flexibility in where and how you secure your ride.

Hardened Steel Build

Each link uses hardened steel with anti-drilling components to resist cutting and power tools. With a 16/18 internal security ranking, the Foldylock Classic sits among the strongest folding locks available.

Folds Compact

The lock folds into a small case with a direct frame mount, staying out of the way on every ride. When you arrive, the lock opens quickly and secures your bike without extra steps.

Silent on Rides

A built-in rattle elimination system keeps the lock quiet while you ride. No clinking or shifting means one less distraction on city streets.

3-Year Warranty

Register your keys after purchase to activate a three-year manufacturer warranty from Seatylock. Long-term coverage means you ride with confidence from the first day to the last.

How This Product Compares to Others

Feature Our Product Average Other Product
Security Certifications Sold Secure Gold & FUB certified (independent standards) Typically no independent certification or Silver-rated only
Internal Security Rating 16/18 Gold rating aligned with Sold Secure Gold Other brands' ratings may not match a recognized standard
Locking Circumference 100 cm, fits larger bikes and more anchor points Typically 75-90 cm, limits locking options
Rivet Protection Patented ultra-protected rivets with side-attack guard system Standard rivets with limited reinforcement at common attack points
Material Construction Hardened steel links with reinforced polymer coating, anti-drilling components Hardened steel common, but polymer protection and anti-drill reinforcement less consistent
Link Mechanism Patented friction mechanism for smooth operation Most folding locks have no friction control, resulting in loose or noisy movement
Rattle Elimination Built-in system keeps lock silent on the bike Typically no noise dampening, metal links rattle in transit
Folded Dimensions 22.2 x 6.9 x 4.7 cm, fits frame-mount case Bulkier folded profile
Weight vs. Security Tradeoff 1.6 kg at Gold security level, lightest in Seatylock's Gold folding lock lineup Comparable Gold-level locks typically weigh 2.2-2.7 kg
Lock Cylinder Standard Automotive-grade cylinder Typically standard commercial-grade cylinder
Keys Included 3 automotive-standard keys plus key duplication card Typically 2 standard keys
Frame Mounting Included secured case with mounting straps, bottle-cage compatibility, anti-slip rubbers Basic bracket
Weather Resistance Weatherproof with anti-corrosion coating Many folding locks offer basic weather resistance
Warranty 3 years with key registration Typically 1 year

Product Videos on Amazon

Product Certifications

Security Level 16/18 Certified Security Level Gold - 16/18 - Our internal rating scale employs a color-based classification scheme, equivalent to the Sold Secure Silver, Gold, and Diamond standards.
Sold Secure Gold Foldylock Elite is Sold Secure Gold certified. Sold Secure is a leading UK security testing and certification standard for bicycle locks. The Gold rating confirms that the lock has been independently attack-tested against common theft tools and methods, demonstrating a high level of resistance against a dedicated thief. It is suitable for valuable bicycles and higher-risk urban environments.
FUB Certified Foldylock Elite is FUB certified. The FUB Recommandé label, granted by the French Bicycle Users Federation (FUB), recognizes products that have been independently tested and recommended for their quality, reliability, and security. It helps cyclists choose trusted equipment that meets high safety standards in France.
Ice Spray Certified The Ice Spray Certified mark confirms that a product has been tested for durability and performance in extreme cold. It ensures reliable operation and corrosion resistance under harsh winter conditions.
Patented Seatylock is protected by multiple patents in the United States, Europe, and other regions worldwide, with additional patents currently pending approval.
3 Years Warranty Seatylock provides a 6-month warranty for all products, starting from the original purchaser's date of purchase. For registered keys, the warranty is extended to 3 years at no additional cost. Products that do not include keys are automatically covered by a 3-year warranty without registration. Register your key here

Product Awards

FAQ

Is the Foldylock Classic 100 one of the lightest Sold Secure Gold folding locks on the market?
The Foldylock Classic 100 is the lightest lock in Seatylock's Sold Secure Gold folding lock lineup, giving you independent, third-party-verified security without the extra weight most high-security locks add. For riders who want Gold-rated protection and a lighter carry, this lock fills a rare spot.
Does the Foldylock Classic 100 protect against side-cut attacks on folding locks?
Side cuts are the most common attack point on folding locks, and the Foldylock Classic 100 addresses this with patented ultra-protected rivets blocking access at every joint. A built-in guard system reinforces each rivet so attempts to cut from the side meet resistance before reaching the folding mechanism.
Is the Foldylock Classic 100 a strong choice for securing a city bike or e-bike?
Designed with city bikes and e-bikes in mind, the Foldylock Classic 100 combines 100 cm of reach with a compact fold mounting directly to your frame. The Sold Secure Gold rating and hardened steel links make this lock a solid fit for urban environments where theft risk is high.
Is the Foldylock Classic 100 worth buying if you want a high-security folding bike lock?
For riders who want a folding lock with verified theft protection, the Foldylock Classic 100 earns Sold Secure Gold from an independent testing body rather than relying on manufacturer claims. A 16/18 internal ranking and a three-year warranty (activated when you register your keys) back up the price with proof and long-term coverage.
How does the Foldylock Classic 100 compare to other Sold Secure Gold folding bike locks?
Among Sold Secure Gold folding locks, the Foldylock Classic 100 is the lightest option in Seatylock's lineup, a practical advantage for riders who want top-tier certification without carrying extra weight. Patented ultra-protected rivets also address the side-cut vulnerability most other folding locks leave exposed.
What security rating does the Foldylock Classic 100 carry, and what does the rating mean?
Sold Secure Gold is an independent security certification tested by a third party rather than issued through manufacturer self-reporting. The Foldylock Classic 100 carries this rating alongside a 16/18 internal security ranking, reflecting hardened steel links, anti-drilling components, and patented rivet protection against side cuts.
Does the Foldylock Classic 100 fold small enough to mount on a bike frame?
Folding into a compact case with a direct frame mount included, the Foldylock Classic 100 stays firmly in place on your bike without rattling or shifting during the ride. When you arrive, the lock opens quickly so you lose no time securing your bike.
Does the Foldylock Classic 100 fit around larger bike frames and locking points?
At 100 cm circumference, the Foldylock Classic 100 gives you more reach than shorter folding locks, opening more locking options in the city. The added length works well for larger bike frames, thicker seatposts, and public racks where a shorter lock would fall short.
Is the Foldylock Classic 100 quiet while riding, or does the lock rattle?
Built-in rattle elimination keeps the Foldylock Classic 100 still and silent while you ride. No clinking or shifting means fewer distractions on city streets, and the frame mount holds everything securely in place between rides.
Does the Foldylock Classic 100 come with a warranty?
Seatylock offers a three-year manufacturer warranty on the Foldylock Classic 100 when you register your keys after purchase. Registering activates full coverage from day one, giving you long-term confidence in the lock's durability.

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