In short
A bike that’s locked incorrectly is half stolen: Always secure the frame (not just the wheel) to a sturdy, anchored object; keep the lock high and tight—and avoid dark, secluded parking spots. Almost all cyclists make the 8 mistakes listed in this article, and thieves love every single one of them.
Even the best lock is useless if it's used incorrectly. Thieves aren't looking for the cheapest lock—they're looking for the easiest mistake to exploit. Here are the eight most common mistakes, ranked from "it happens to everyone" to "an open invitation."
01Only the front wheel is connected
The classic scam: The lock runs through the front wheel—and the thief opens two quick-release levers, takes the rest of the bike, and leaves you with just the front wheel. Always secure the frame; if the lock is long enough, secure both the frame and the rear wheel.
02Not Tied to Anything Solid
A locked but unsecured bike can easily be carried away—two people, a van, ten seconds. The lock must be secured to a firmly anchored object: a bike rack, a lamppost, or a sturdy fence. Give it a quick shake: If the object wobbles or you can lift the bike over it, find a better spot.
03Castle on the Ground
If the lock is lying on the asphalt, the thief has a built-in support: he can brace his tools against it and use the ground as an anvil. Install the lock as high as possible —ideally at frame height, with the lock cylinder facing down.
04Too Much Play in the Lock
The more space there is between the lock, the frame, and the U-lock, the more room there is for a pry bar. Make sure it fits snugly: The lock should sit securely, not dangle. That’s exactly why it’s worth choosing the attachment point carefully instead of just using the first one you come across.
05A Cheap Lock on an Expensive Bike
A cable lock on a 2,000-euro bike is like a padlock from an Advent calendar on your front door. The rule of thumb: invest about 10% of the bike’s value in a high-quality U-lock or folding lock. To learn how thieves tackle weak locks—and which ones hold up—read “How Thieves Pick Bike Locks.”
06Always the same place, always the same time
If you park your bike at the same rack every day at 8 a.m., you’re making yourself an easy target. Thieves watch—and then strike when you’re at the office. If possible, vary where you park—and always choose busy, well-lit, and visible locations.
07Quick-release levers not secured
Wheels and seat posts with quick-release skewers can be removed in seconds—without any tools. Replace the quick-release skewers on the wheels and seat post with bolted or coded axles, or secure them with a secondary lock. Otherwise, the bike will still be there, but the seat or front wheel will be gone.
08Expensive Add-Ons on Display
Handlebar bag, light, speedometer, battery: It’s best to remove anything that can be taken off without tools yourself—before someone else does. With e-bikes, the rule is: Remove or lock the battery, especially overnight.
Tip: Locking your bike properly offers double protection—including when it comes to insurance. A bike that isn’t locked or is locked incorrectly can be considered gross negligence. You can read about what insurers expect in the guide to home insurance coverage for bicycle theft.
And since no lock is unbreakable: Make your bike even more identifiable. A coded and registered bike is unattractive to thieves and can be clearly traced back to you if it’s found—the complete security kit is available on the page “Bicycle Theft Protection.”
The 10-Second Check When Parking
- Frame (not just the wheel) connected
- Stable, firmly anchored object – passed the vibration test
- Lock up, tight, cylinder down
- A busy, well-lit, visible location
- Quick-release levers secured, attachments removed
- Bike coded + registered (Plan B is in place)
We write about bicycle theft, anti-theft coding, and digital theft protection—in a practical way, without scaremongering, and with concrete steps you can take.
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