What is Bicycle Verification?
Checking if a bicycle is stolen means verifying the bike's serial number against national bike registries, local law enforcement databases, and crowdsourced theft reports. Most bicycles have a unique serial number stamped on the frame (usually on the bottom bracket). SafeOrStolen's bike checker instantly searches BikeIndex.org (the largest open-source bike registry), local police stolen bike databases, 529 Garage registry, manufacturer records, and user-reported theft databases to determine if a bicycle has been reported stolen. This works for all bikes: road bikes, mountain bikes, BMX, cruisers, e-bikes, and electric scooters.
How It Works
Locate the serial number: Usually stamped on the bottom bracket (under the pedals), rear dropout (near rear wheel), head tube (below handlebars), or seat tube. Bring a flashlight - serial numbers can be hard to see
Record the complete serial number including all letters and numbers - even one wrong character will cause false results
Also note the bike's make, model, color, and any unique features (modifications, scratches, stickers)
Enter the serial number into our verification tool at SafeOrStolen.com/verify
Review the report showing whether the bike has been reported stolen, and compare photos/features if available
If CLEAN, proceed with purchase. If STOLEN, walk away and contact the original owner listed in the database
Our bicycle verification system searches multiple bike-specific databases simultaneously. We query: (1) BikeIndex.org - the world's largest open-source stolen bike registry with over 500,000 listings, (2) 529 Garage - community-based bike registration system used by 3,000+ police departments, (3) Local law enforcement stolen property databases, (4) Project 529 Shield database, (5) Manufacturer warranty and registration records (Trek, Specialized, Giant, Cannondale), (6) User-reported theft databases and social media reports. Within 3 seconds, you receive a report showing whether the bicycle has been reported stolen, the original owner's contact information (if available), when and where it was stolen, and identifying features (color, modifications, damage) that can help confirm it's the same bike.
Why Check Before Buying?
Buying a stolen bicycle may seem like a minor issue, but it has serious consequences. (1) The bike can be confiscated by police with zero compensation, (2) You could face charges for receiving stolen property, (3) You lose your entire purchase price with no recourse, (4) Bike shops may refuse to service obviously stolen bikes, (5) The cycling community will ostracize you if discovered. In 2024, over 1.5 million bicycles were reported stolen in the United States, with an average value of $600 (high-end bikes worth $3,000-$10,000+). Stolen bikes frequently appear on Craigslist, Facebook Marketplace, OfferUp, and even at bike swaps and flea markets. Thieves target expensive road bikes, mountain bikes, and e-bikes, often selling them for 30-50% below market value. Our free bike checker protects you from unknowingly purchasing stolen property.