A registry will not stop someone from stealing a bike. What it does is make the bike easier to identify after it disappears. That matters when police, shops, used-bike buyers, or someone who finds the bike has a serial number or visible marking to check.
The useful work happens before the theft: record the serial, take clear photos, save proof of ownership, and choose the registry that people around you actually use.
Find and photograph the frame serial
Start under the bottom bracket, then check the head tube, seat tube, rear dropout, and e-bike motor area. Photograph every stamped or stickered number if you are not sure which one is the frame serial.
Type the serial into the registry and keep the photo. A blurry number entered from memory is much less useful after a theft.
- Take full-bike photos from both sides.
- Photograph the serial close up.
- Save make, model, color, size, wheel size, and upgrades.
Choose the registry your local ecosystem will check
Bike Index, Project 529, and BikeRegister all create searchable records, but local usage matters. Use the registry promoted by your city, campus, shop, or police department first.
If there is no local standard, North American riders should compare Bike Index and Project 529. UK riders should start with BikeRegister. Registering in more than one place is fine when you can keep records updated.
Decide whether a visible identifier is worth it
Physical identifiers can help a finder connect the bike to a record and may discourage casual resale. Bike Index offers optional QR stickers, Project 529 offers Shields, and BikeRegister sells marking products.
They are optional. A free registration with good serial and photo records is still much better than no record.
What to do if the bike is stolen
File a police report, mark the registry listing as stolen or missing, upload clear photos, and share the public listing with local shops and community groups. Watch marketplaces, but do not try to recover the bike alone.
If you have insurance, follow its claim timing and evidence rules. The registry record supports the claim, but it is not a substitute for the policy process.
Recovery situations can become unsafe. Pass location and seller evidence to police instead of arranging a confrontation.