ART approved bike lock Netherlands, explained

ART approved bike lock Netherlands, explained: the stars, the insurers and the 30-second check

Last updated: 28/10/2026

If you have ever read the small print of a Dutch bike insurance policy, you have met three letters: ART. Nearly every insurer in the country demands an ART approved lock (an ART-slot) before it pays out for a stolen e-bike, yet plenty of riders still pick a lock on looks, price or a “hardened steel” sticker. Here is what the ART-keurmerk really means, which star rating your e-bike needs, and how to verify any lock in the official register before you spend a cent.

What an ART approved bike lock (ART-slot) actually is

ART is not a brand, a shop or a marketing club. It is a Dutch foundation, Stichting ART, and the ART quality mark dates from 1982. When a lock carries the ART logo with stars, it means an independent laboratory physically attacked that exact model, and it survived long enough to earn its rating.

The foundation was set up by RAI Vereniging (the industry body), the ANWB, the testing lab SKG-IKOB and the insurers Bovemij and Unigarant. That mix is why insurers trust it: the organisations that eventually pay theft claims help shape the test rules, so the standard follows real theft methods instead of laboratory theory. Almost all bicycle insurers in the Netherlands require an ART approved lock as a condition of cover, and the same goes for e-bikes, speed pedelecs, mopeds and motorcycles.

How an ART lock gets its stars

Every candidate lock goes to SKG-IKOB Certificatie BV, an independent Dutch lab. According to Stichting ART, the lab runs more than 20 tests on each model: freezing, dust, corrosion, endurance, cutting, tensile strength and finally the attack tests. The durability tests decide whether the lock survives Dutch weather and daily use at all. The attack test then decides the star rating.

A technical committee of manufacturers, the lab, insurers and the foundation reviews the standards regularly and folds in the latest methods thieves use. That is the quiet strength of the keurmerk: it moves when theft moves.

The ART star ratings, from 1 to 5

The stars are the whole point of the system. More stars means the lock resisted a heavier attack for longer. Here is how the five tiers map to real Dutch usage, and where insurers draw their lines.

ART-2 vs ART-3: which one do you actually need?

Insurers set the floor; your postcode and your bike set the real need. Our advice, bike by bike:

• Insured city bike: one ART-2 lock satisfies ANWB and most other policies. Add a second lock if the bike sleeps on the street or stands at a station.
• E-bike: two ART-2 locks is the contractual minimum at ANWB and Univé. In Amsterdam, Rotterdam, Utrecht or The Hague, where organised theft is a business rather than a hobby, we treat ART-3 as the real standard for the loose lock, with a ring lock of at least ART-2.
• Speed pedelec or a €5,000 cargo e-bike: a speed pedelec counts as a moped, and Stichting ART positions ART-3 as the minimum for mopeds. Step up to ART-4 on the loose lock.

Our full testing notes and model picks live in our guide to the best e-bike locks in the Netherlands.

How to spot a genuine ART approved lock

A real ART lock shows three things on the lock body or its key housing, printed or as a sticker:

• the ART logo,
• the star rating (one to five stars),
• a four-digit approval number unique to that certified model.

The 30-second register check

1. Open the free official ART register (the site works in English).
2. Search by brand or model, or filter by lock type (ring lock, chain, folding lock, U-shackle, cable lock, brake disc lock, wall or floor anchor, alarm versions) and by star category 1 to 5. You can sort by approval number.
3. Match the four-digit approval number on your lock against the entry.
4. Check the status. An entry marked “Vervallen” (expired) with a date means the lock is no longer approved from that date, for example because the manufacturer withdrew it, it no longer meets the requirements or it is no longer produced or imported.

One nuance that matters at claim time. According to Stichting ART’s insurance page, the approval at the start of your policy is what counts: if the lock was approved when the policy began, that approval applies for the whole policy term, even if it expires later. A new policy needs a lock that is approved today. ART does not speak for individual insurers, so always confirm in your polisvoorwaarden. It is exactly the kind of detail people discover one theft too late, which is why we check the register once a year for every lock we recommend.

What Dutch insurers require in 2026

The lock rules are not in any law book; they sit in your policy conditions, and that is where claims live or die. The current market position, in plain English:

• ART-2 is the floor. Virtually every Dutch bicycle insurer requires at least one ART approved lock with two stars on an insured bike. Rabobank describes an ART-2 ring lock as often enough for an ordinary bike.
• E-bikes need two locks. ANWB requires two ART-2 certified locks on an insured e-bike, and Univé asks for two 2-star ART locks of any type (ring, chain or U-lock). Rabobank notes that a second lock is more often required on e-bikes, fatbikes and cargo bikes. ANWB states explicitly that a plug-in chain (insteekketting) does not count as the second lock, a point we also make in our e-bike insurance guide.
• Anchor the second lock. The insurer conditions we checked do not say where the second lock must go, but Stichting ART’s own advice is to use it to attach the bike to a fixed object. A ring lock only immobilises the rear wheel, so anchoring is what stops a van.
• High-value bikes need a tracker. ANWB requires a Kiwa SCM-approved track-and-trace system or a Bosch Connect Module for e-bikes worth €4,500 or more, accessories included, on top of the locks. Other insurers such as Enra and Kingpolis apply similar thresholds, with a lower one for cargo e-bikes at some, so check your policy. Fatbike owners in big-city postcodes often face the same demand; our roundup of the best e-bike GPS trackers in the Netherlands covers what actually qualifies.
• Proof is part of the deal. Keep the lock receipt and a photo of your locked setup. With a ring lock, handing over both original keys is how you prove the bike was locked at all.

Insurer rules change and differ per policy. Your polisvoorwaarden always decide, so check them before you buy a lock.

And yes, the risk is real, not insurance marketing. CBS registered-theft statistics show 86,130 bike thefts registered by the police in 2024 and a provisional 86,950 in 2025, up from 59,950 in 2021: a rise of about 45% in four years. Survey-based estimates run far higher still, close to a million a year, because most victims never file a report. We broke the numbers down in our piece on how common e-bike theft really is.

ART lock types compared

Stichting ART certifies every common lock type, from ring locks and chains to folding locks, U-shackles, cable locks, brake disc locks and wall or floor anchors. They are not equally useful, though. Here is how we weigh them for daily Dutch riding:

Two combos cover most riders. For a city e-bike: a ring lock plus an ART-3 chain such as the AXA Linq Pro 100 (around €50–€90), long enough at 100 cm for racks and poles. For high-theft postcodes: an ART-3 U-lock like the Abus Granit X-Plus 540 (around €95–€125, with a 13 mm hardened shackle) as your anchor lock, with the ring lock as backup. Both appear in our best e-bike lock guide with full test notes.

What a proper ART setup costs in 2026

Many e-bikes ship with a ring lock already fitted, in which case you only pay for the second lock.

On a €1,500 e-bike that is not an extra cost, it is part of the purchase; see what an e-bike really costs in the Netherlands for the full ownership picture. A refused claim because of a €40 chain is one of the most expensive mistakes in Dutch cycling.

Locking technique: the “fixed world” rule

Even a five-star lock fails if the bike is only locked to itself. Stichting ART’s own advice is blunt: always use a second ART lock to attach your bike to the “fixed world”.

• Anchor to something truly fixed: a bolted bike rack, a thick pole, a floor anchor. Thin signposts lift out or cut through.
• Lock high and tight: keep the chain or shackle off the ground and fill the space inside a U-lock, so crowbars and jacks get no room to work.
• Lock it in the shed too. Bikes lifted from garages and boxes are a classic Dutch loss; the same two-lock habit applies at home.
• Mind the keys. Store spare keys safely and keep every original key: insurers may ask for them after a theft.
• Take what clips off. A removable display is free to carry and annoying to replace, for a thief and for you.

Five ART myths we hear every week

“The box says hardened steel, so it is strong.” Anyone can print that. Only the stars come from a lab that tried to destroy the lock.

“My plug-in chain counts as the second lock.” ANWB says explicitly that it does not. It clips into the ring lock instead of being a separate lock, so it is one lock in two costumes.

“ART-1 is still ART, so I am covered.” As the only lock on an insured bike, an ART-1 lock is close to a refused claim waiting to happen.

“An old ART sticker is fine forever.” Approvals expire. Check the register for “Vervallen”: an expired lock can still count on a policy that started while it was approved, but not on a new one.

“Five stars is always the best buy.” Five-star locks are motorcycle-grade and heavy. A lock left at home protects nothing at the station. Buy the highest rating you will genuinely carry; for most e-bike riders that is ART-3.

Our rule of thumb at ebykes: two ART locks, at least ART-3 on the loose one in town, both receipts photographed on your phone, and the approval number re-checked in the register once a year. Boring? Absolutely. Cheaper than watching a €2,000 e-bike ride off in a van? Also absolutely.

Frequently asked questions

Checked on 28/10/2026 against Stichting ART, ANWB, Univé, Rabobank, Rijksoverheid and CBS. Insurer requirements differ per policy and change over time, so your polisvoorwaarden always decide. This is general information, not insurance advice.